The orbitals 4px, 4py, and 4pz make up the 4p subshell. Each orbital can hold a maximum of two electrons, while the p orbital has a total of six electrons.
In the orbital 4p, the p stands in for the azimuthal quantum number, while the 4 stands for the main quantum number (n) (l).
For a 4p electron:
N and L are fixed quantum numbers. ml might be -1, -1, or +1.
This informs you that there are three 4p orbitals, as was already mentioned. The spin quantum number, ms, may equal 1/2.
The following six quantum number sets (n, l, ml, ms) are so possible:
1. (n, l, ml, ms) = (4, 1, -1, +1/2)
2. (n, l, ml, ms) = (4, 1, 0, +1/2)
3. (n, l, ml, ms) = (4, 1, +1, +1/2)
4. (n, l, ml, ms) = (4, 1, -1, -1/2)
5. (n, l, ml, ms) = (4, 1, 0, -1/2)
6. (n, l, ml, ms) = (4, 1, +1, -1/2)
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the aluminum sample is dissolved in hcl and h2 gas is produced and collected over water. the volume of h2 gas produced is 73.8 ml. what is the volume of gas, in liters? ***do not enter units with your answer. do not use scientific notation. correct significant figures are required\.\***
The volume of gas is 62.2 L
The balance chemical equation is
2Al + 6 H+ → 2Al3+ + 3H2
n al/nH2 = 2/3
nH2 = 3/2 nAl
nAl = given mass / molar mass = 42/27 = 1.56 mol
nH2 = 3 × 1.56/2 = 2.34 mol
so, accordingly to ideal generation PV = nRT
V = nRT/P
T = 30 degree celsius = 303K
V = 62.2 L
The amount of occupied three-dimensional space is measured in volume. It is typically expressed quantitatively using SI-derived units (such the cubic meter and liter) as well as other imperial or US-standard units (such as the gallon, quart, cubic inch). By the definition of length, volume and length are connected (cubed). The volume of a container is commonly understood to be its carrying capacity, or the amount of fluid (liquid or gas) that it could hold, as opposed to how much actual space the container occupies.
In the past, standardized containers were used to calculate volume first, followed by naturally occurring vessels of a similar shape. A number of simple three-dimensional shapes have volumes that can be calculated using mathematical methods.
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Predict the carbenoid addition products of the following reactions: trans-hex-3-ene + CH2I2, Zn(Cu) cis-hept-2-ene + CH2I2, Zn(Cu)
The reactions that result in the carbenoid addition products. Trans-hex-3-ene with CH2I2, Zn (a) (Cu). 3-Nitro-pent-2-ene. ALKENE HYBRIDIZATION When three atoms are joined to a carbon (that is, one of the bonds is a double bond).
What is the carbenoid addition products?
A gateway functional group is the double bond in an alkene. The basis for the remainder of your study of organic chemistry is laid by alkene reactions, which generate numerous additional functional groups. The most frequent reactions of double bonds change the pi bond into a sigma bond because single bonds (sigma bonds) are more stable than pi bonds. As an illustration, catalytic hydrogenation splits the H-H sigma bond into two C-H sigma bonds (Section 7-8). Exothermic (H° = approximately -80 to -120 kJ>mol or approximately -20 to -30 kcal>mol).
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in the chart below, using the characteristic or trend listed on the left, indicate whether using an element's period or group would be most helpful. if neither the period nor group would be helpful, do not select anything in that row. if both the period and the group would be helpful, select both.
The periods are the horizontal rows in the periodic table. the vertical column are the groups in the periodic table.
The horizontal rows are periods in the periodic table and the column in the periodic tables are groups . the some of the periodic trends are given below :
The atomic size of the atom increase as we move down the group and decrease as we move left to right in the period in periodic table.the ionic size increases down the group and decreases cross the period.the ionization enthalpy increases as we move left to right in the period and decreases as we move down the group in the periodic table.This question is incomplete, I answer the question in general according to my knowledge.
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Not yet answered Points possible: 1.00 The equivalence point of any acid-base titration can be determined visually from a titration curve by finding the place where Select one: O the curve levels off. O the curve has the steepest slope. O pH=7.
The volume of the base should be gradually increased, stopping once the equivalence point is achieved. At the volume halfway between the equivalence point and the acid, the acid's pKa is equal to the pH.
What is titration, for instance?Titration, sometimes referred to as titrimetry, is a method for calculating the concentration of a specific analyte in a mixture that is used in chemical qualitative analysis. Titration, which is also sometimes referred to as volumetric analysis, is a crucial analytical chemistry method.
What governs titration in its basic form?The following is the fundamental titration principle: The sample being studied is given a solution, referred to as a titrant or standard solution. A chemical is present in the titrant in a known concentration.
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A small drop of oil in water assumes a spherical shape. Explain. (Hint: Oil is made up of nonpolar molecules, which tend to avoid contact with water.)
A small drop of oil in water assumes a spherical shape. This is due to the property of surface tension.
Surface tension is defined as, " The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules". In other words, this property of the liquid holds the liquid molecules together and resists any external force on the surface.
The surface tension of a drop of oil tends to have a minimum surface area, therefore the drop of oil acquires a spherical shape. Also, oil is made up of non-polar molecules which doesn't form any interactions with the polar water molecule, so there is an adhesive force between the molecules of oil and water.
As a result, due to this property of surface tension, a drop of oil in water assumes a spherical shape.
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A reaction that converts a saturated acid into an unsaturated one
Answer:
A reaction that converts a saturated acid into an unsaturated acid is called hydrogenation.
Explanation:
Answer:
succinate dehydrogenase
Explanation:
Write out the chemical equation and equilibrium constant expression (Law of Mass Action) for the acetic acid / acetate ion buffer system. Derive the Henderson-Hasselbach equation for this system.
The chemical equation for the acetic acid / acetate ion buffer system is CH3COOH -> CH3C00- + H+.
The Henderson-Hasselbalch equation establishes a connection between an acid's pKa and pH in aqueous solutions. When the concentration of the acid and its conjugate base, or the base and the corresponding conjugate acid, are known, the pH of a buffer solution can be determined with the use of this equation. The formula is: pH = pKa + log10 ([A-]/[HA]). In this equation, [A-] stands for the molar concentration of the conjugate base (of the acid), and [HA] for the weak acid.
Given acetic acid CH3COOH the Henderson-Hasselbach equation is:
CH3COOH -> CH3COO- + H+
Ka = ([CH3COO–]x[H+])/[CH3COOH]
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Which of the following units would you use to describe the amount of air in a propane tank?
Ampere
Gallon
Gram
Meter
Gallon can be used to describe the amount of air in a propane tank. Therefore, option (B) is correct.
What is a Gallon?The gallon can be described as a unit of volume in imperial units and United States customary units. The gallon currently describes in the imperial system, and in the US customary system.
The British imperial gallon can be described as exactly 4.54609 dm³. The US liquid gallon or "gallon" can be described as 231 cubic inches, which is approximately 3.78 liters.
In the US, a common bottle size for liquor was one-fifth of a US gallon or one-sixth of an imperial gallon. Both the US liquid and imperial gallon are divided into quarter gallons, which in turn are divided into two cups, which in turn are further divided into two gills.
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Answer:
Gallon
Explanation:
I got it right on the test.
help me pls
Hydrogen gas is produced when we react magnesium
metal with hydrochloric acid:
Mg(s) + 2 HCl(aq) → MgCl₂(aq) + H₂(g) T
(a) If 4.50 g of hydrogen gas is collected at STP, what
volume of hydrogen does this represent?
(b) If 0.52 mol of magnesium completely reacted, what
amount of hydrogen gas (in moles) would be produced
at STP? How many grams of hydrogen is this?
The amount of CO2 produced at STP is 4.5 g, and the amount of hydrogen biogas is 0.03969 L.
For what does STP stand?The nominal atmospheric conditions at sea level are referred to as "standard temperature and pressure" (STP). The temperature and pressure are both zero degrees Celsius (atm).
How may STP be put to use?A Layer two wireless protocol called Spanning Pine Protocol (STP) is used to stop loops from forming within a topology of a network. STP was developed in order to prevent the issues that occur when pcs transfer files on a LAN with redundant pathways.
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What is water vapor has been released into the atmosphere it rises and cools turning back into liquid What is the process called?; What is it called when water goes back into the atmosphere?; What happens when water vapor rises into the atmosphere and cools?
The process of cools turning back into liquid is called condensation. the process of water goes back into the atmosphere is called evaporation. when water vapor rises into the atmosphere and cools is forms cloud.
What is water vapor has been released into the atmosphere it rises and cools turning back into liquid What is the process called as condensation. The condensation when the water vapor converts into the liquid sate. when water goes back into the atmosphere is called as evaporation . the evaporation is the process when the liquid turns to the water vapor.
when water vapor rises into the atmosphere and cools it will forms the cloud.
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Is nitric acid a strong or weak acid?; How is nitric acid classified?; Why is nitric acid classified as a strong acid?; Is nitric acid considered strong?
Nitric acid is a strong acid because it completely ionizes into hydronium (H₃O⁺) and nitrate (NO₃⁻) ions in aq. solutions.
The chemical formula for nitric acid is HNO₃, and it is an inorganic substance. It is a mineral acid that is extremely corrosive. The substance lacks any apparent color, however, older samples often have a yellowish tinge to them because of the degradation into oxides of nitrogen. The nitric acid that is available for purchase on the market has a volume of 68% in H₂O. Fumigating nitric acid is the name given to the solution if it reaches a concentration of greater than 86% HNO₃. Fumigating nitric acid can be further classified as either red-fuming nitric acid at concentrations greater than 86% or white-fuming nitric acid at concentrations greater than 95%. This distinction is made based on the amount of nitrogen dioxide that is present.
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Two students titrated a 25.0 mL aliquot of pear juice with 0.17 M NaOH to the phenolphthalein endpoint. The initial buret reading was 0.73 mL and the final buret reading was 18.39 mL.
A.) What was the mass of citric acid in the juice sample?
B.) Calculate the mg of citric acid present per mL of juice.
(A) The mass of citric acid in the juice sample is 0.576g
(B) The mg of citric acid present per mL of juice is 23.08 mg/ml
Sodium hydroxide (NaOH) reacts with acids, thus:
NaOH + H⁺ → H₂O + Na⁺
The volume of titration is: 18.39mL - 0.73mL = 17.66mL
Moles of this volume in 0.17M NaOH are: 0.01766L × (0.17 mol / L) = 0.00300mol NaOH ≡ mol citric acid
Assuming the only acid in pear juice is citric acid-
As molar mass of citric acid is 192.124g/mol.
Mass of citric acid is: 0.00300mol citric acid × (192.124g / mol) =0.576g citric acid .
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the solera system is a systematical aging and blending of spanish sherry where a portion of wine from each vintage year is removed and added to an older vintage. the oldest blend is then bottled and sold.
The solera system is the systematical aging and the blending of spanish sherry where a portion of wine from vintage year is removed and added an older vintage. oldest blend is then bottled and sold. this statement is true.
The solera system can be defined as the process used for liquids that aging liquids these are like wine, beer vinegar, the brandy. it is done by the fractional blending. the process is done in such a manner that the final product is the mixture of the ages. as the process continues for many years the average age will gradually increases.
Thus, The portion of the wine from each the vintage of year is removed and added to an older vintage, the oldest blend will bottled and then sold.
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of the three types of subatomic particles, only neutrons do not carry charge. protons carry a positive charge, and electrons carry a negative charge. protons and neutrons are bound in the nucleus, while electrons orbit the nucleus. when the number of each type of subatomic particle in an atom changes, the characteristics defining the atom also change. match the appropriate phrases with the type of subatomic particle that completes the defining characteristic.
To complete the definition joining and ordering the given phrases, the atom, protons, neutrons and electrons have been considered as a sequence.
Ordered definitions of atomic particlesIn the atom, the defining characteristics change when the amounts of groups of subatomic particles vary, that is, when the number of neurons, protons, or electrons changes.
The numbers of protons and neutrons vary equally because they are bound together in the nucleus.
The number of electrons is different from that of protons and neutrons, and these are orbiting around the nucleus.
Protons carry a positive charge
Electrons have a negative charge.
Neutrons have a neutral charge, that is, they have no charge.
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Solid ammonium chloride, NH4Cl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen chloride, HCl. NH3(g)+HCl(g)⟶NH4Cl(s) A 6.63 g sample of NH3 gas and a 6.63 g sample of HCl gas are mixed in a 1.00 L flask at 25 ∘C. What is the pressure in atmospheres of the gas remaining in the flask? Ignore the volume of solid NH4Cl produced by the reaction.
9.41 atm is the pressure in atmospheres of the gas remaining in the flask
What is the pressure in atmospheres?The equation NH3(g) + HCl(g) ==> NH4Cl(s) is balanced.
Divide the moles of each reactant by its coefficient in the balanced equation, and the limiting reagent is identified as the one whose value is less. With the issue we now have...
6.44 g NH3 times 1 mol NH3/17 g equals 0.3688 moles of NH3 ( 1 = 0.3688)
HCl: 6.44 g of HCl times one mole of HCl every 36.5 g equals 0.1764 moles ( 1 = 0.1764). CONTROLLING REAGENT
NH4Cl will this reaction produce in grams
0.1764 moles of HCl multiplied by one mole of NH4Cl per mole of HCl results in 9.44 g of NH4Cl (3 sig. figs.)
the gas pressure, measured in atmospheres, that is still in the flask
NH3(g) plus HCl(g) results in NH4Cl (s)
0.3688......0.1764............0..........
Initial
-0.1764....-0.1764........+0.1764...Change
Equilibrium: 0.1924.......0...............+0.1924
There are 0.1924 moles of NH3 and no other gases in the flask. This is at a temperature of 25 °C (+273 = 298 °K) in a volume of 0.5 L. After that, we may determine the pressure by using the ideal gas law (P).
PV = nRT
P = nRT/V = 0.1924 mol, 0.0821 latm/mol, and 298 Kmol / 0.5 L
P = 9.41 atm
9.41 atm is the pressure in atmospheres of the gas remaining in the flask
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Using the balanced equation below,
how many grams of cesium fluoride
would be required to make 73.1 g of
cesium xenon heptafluoride?
CSF + XeF6 CsXeF7
To solve this problem, we can use the coefficients in the balanced chemical equation to determine the ratio of the amounts of each reactant and product. This will allow us to determine the amount of cesium fluoride needed to produce a given amount of cesium xenon heptafluoride.
In the given equation, we can see that for every 1 molecule of cesium fluoride, we get 1 molecule of cesium xenon heptafluoride. This means that the ratio of cesium fluoride to cesium xenon heptafluoride is 1:1.
We are given that we want to make 73.1 g of cesium xenon heptafluoride. Since the ratio of cesium fluoride to cesium xenon heptafluoride is 1:1, we can use the mass of cesium xenon heptafluoride to determine the mass of cesium fluoride needed. Specifically, we can set up the following equation:
CsF mass = CsXeF7 mass
Substituting the given values into this equation, we get:
CsF mass = 73.1 g
Solving this equation gives us a mass of 73.1 g of cesium fluoride.
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A gas is produced when H3PO4 is added to an aqueous solution of which of the following? a) NaOH b)Ba(OH)2 c)Ba(NO3)2 d) Na2CO3
A gas produced when H3PO4 is added to an aqueous solution of Ba(NO3)2
Phosphoric acid is a weak acid. Phosphoric acid, also known as orthophosphoric acid, is a tricrotic acid that exists as a dense liquid. It is an irritant or corrosive to the skin, eyes, and other mucous membranes of both humans and laboratory animals. Its salts, though, exhibit a significantly lower irritancy potential. Phosphoric Acid can irritate the lungs. Repeated exposure may cause bronchitis to develop with cough, phlegm, and/or shortness of breath. * Long-term exposure to the liquid may cause drying and crack of the skin.
H3PO4 can donate three protons during a dissociation reaction H3PO4 has three steps of dissociation.
First ionization step: H3PO4(Aq)⇌H+(aq)+H2PO4−(aq)
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What is the ionic compound formula of sodium phosphate?
Na3PO4 With the chemical formula Na3PO4 and a molecular weight of 163.94 g/mol, sodium phosphate is a phosphate salt.
Sodium phosphate is an ionic substance for what reason?Ionic compound Na3PO4 (N a 3 P O 4) exists. This is due to the fact that it contains both sodium and phosphate ions, the former of which are cations and the latter of which are anions. The chemical is molecular because sodium is a metal while phosphorous and oxygen, which together make up phosphate, are both nonmetals.
Which ions make up Na3PO4?Sodium phosphate is the name of the ionic substance. Sodium and phosphate ions make up the two ions in the solution. The symbols for these two ions are Na+ and PO34 N a + a n d P O 4 3.
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What volume of 0.35 M Ca(NO3)2 is
required to completely react with 50.0 mL
of 0.75 M K2SO4?
Ca(NO3)2 + K₂SO4 → CaSO4 + 2KNO3
[?] mL Ca(NO3)2
Answer: 107 mL
Explanation:
This equation can be modeled as MV=MV. Where M is molarity and V is volume.
The ratio between the two values is 1 mol to 1 mol so we do not have to deal will manipulating mol amounts and can just plug in values.
(0.35)V=(0.75)(50)
V=107 mL
Answer: 107 ml
Explanation:
warmer temperatures make red wines taste hotter and harsher than giving them a light chill before serving. True or False?
Given statement is true warmer temperature make red wines taste hotter and harsher
Not all red wines should be served chilled because lower temperatures can make the tannins taste harsher and more astringent and bitter. Also, colder temperatures will make the wine taste less fruity.
Red Wine Should Be Served Cool — 60 to 70 degrees
White Wine And Rosé Should Be Served Cold — 50 to 60 degrees
To cool red down to its proper temperature, we like to place it in the fridge an hour before serving it. For quicker results, you can put it in the freezer for just 15 minutes. After opening and either decanting or pouring the first glasses, just as with white we like leaving the wine out on the table to slowly warm.
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unknown element x has a mass number of 88 and contains 50 neutrons in the atom. element x is strontium
Strontium element has a mass number of 88 and contains 50 neutrons in the atom.
Given that;
Mass number of element X = 88
Number of Neutrons in element X = 50
we know the concept that Mass number is represent as total number of Neutrons and proton present in Nucleus
So, Mass number of element X = Number of Neutrons in element X + Number of Protons in element X
Thus, 88 = 50 + Number of Protons in element X
Number of Protons in element X = 38
As, Number of proton = Atomic number
So, Atomic number of element X = 38
Hence Unknown Element X is Strontium
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CH3OH(g) —> CO(g) + 2 H2(g) DH° = +91 kJ/molrxnThe reaction represented above goes essentially to completion. The reaction takes place in a rigid, insulated vesselthat is initially at 600 K.Which of the following statements about the bonds in the reactants and products is most accurate?(A) The sum of the bond enthalpies of the bonds in the reactant is greater than the sum of the bond enthalpies of the bonds in the products.(B) The sum of the bond enthalpies of the bonds in the reactant is less than the sum of the bond enthalpies of the bonds in the products.(C) The length of the bond between carbon and oxygen in CH3OH is shorter than the length of the bond between carbon and oxygenin CO.(D) All of the bonds in the reactant and products are polar.
CH3OH(g) —> CO(g) + 2 H2(g) The reaction takes place in a rigid, insulated vessel that is initially at 600 K. (B) The sum of the bond enthalpies of the bonds in the reactant is less than the sum of the bond enthalpies of the bonds in the products.
The term "bond enthalpies," which is also referred to as "bond energy," describes the strength and subsequently the stability of a chemical connection. The bond enthalpy of a chemical bond is the total energy required to dissolve 1 mole of that chemical bond. The single bond between oxygen and hydrogen, for instance, has a bond enthalpy of 463 kJ/mol. This means that a total energy of 463 kilojoules must be used to break a mole of hydrogen-oxygen single bonds. The fact that a chemical bond breaking process is always endothermic must constantly be kept in mind (because energy must be supplied to the molecule in order to break the chemical bonds that constitute it). As a result, whenever a chemical bond breaks, there is a positive enthalpy shift (H > 0). The creation of a chemical bond, on the other hand, is virtually invariably an endothermic process. There will be a negative enthalpy shift under these circumstances. The "mean bond enthalpy" or "average bond enthalpy" refers to the strength of a single bond within a molecule.
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the balanced equation for part 2 of the experiment is: zn (s) cu2 (aq) cu (s) zn2 (aq) this reaction is...
This reaction shows that Cu is reduced and Zn is oxidized and the reaction takes place spontaneously.
Those species are reduced readily which has high value of reduction potential. Here, Cu2+ has a reduction.
If the typical electrode potential for a redox reaction, Eo (redox reaction), is positive, the reaction is considered spontaneous. Redox reaction Eo (which is positive) will cause the reaction to move forward (spontaneous). (See voltaic and galvanic cells.)
A spontaneous reaction is one that favors the creation of products under the reaction's current conditions.
Free energy is released during spontaneous reactions, so the sign of G must be negative. There are four different possible combinations because both H and S can be positive or negative depending on the specific reaction's characteristics.
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measure or estimate npp , it can become the most difficult or challenging in___biomes, because___.
Measure or estimate npp , it can become the most difficult or challenging in aquatic biomes, because in aquatic ecosystems, light and nutrients limit primary production.
Light, water, temperature, and mineral nutrients are the four main abiotic factors that typically regulate the amount of NPP on land, and all of these abiotic factors are undergoing rapid change as a result of human activity, with very unknown implications for both local and global NPP. Net primary production (NPP) is restricted by the availability of land, water, solar radiation, and soils, despite the fact that humans can affect that capacity through inputs and management. Aquatic productivity is the rate at which energy is converted into organic materials by photosynthetic and chemosynthetic autotrophs. The primary limiting elements in an aquatic ecosystem are salinity, temperature, sunshine, oxygen content, nutrition availability, and oxygen content.
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if the system is at equilibrium, waht would happen if the follwoing changes are applied?/the volume of the container incrased why
Conversely, if you decrease the pressure (by increasing the volume of the container), equilibrium will shift to the favor the side with the most moles of gas, since more moles will occupy a greater volume. If both side of the equation have the same number of moles of gas, then there will be no change in the position of equilibrium.
The word equilibrium means "equilibrium" and indicates that a chemical reaction is an equilibrium between the reactants and the products participating in the reaction.
Equilibrium describes the state of a process where observable properties such as color, temperature, pressure, and concentration show no change.
Chemical equilibrium is a dynamic state in which front and back reactions occur at rates such that the macroscopic composition of the mixture remains constant. The equilibrium symbol ⇌ thus symbolizes the fact that the reaction occurs in both forward and reverse directions.
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describe one chemical property of group 1 metals that results from the atoms of each metal having only one valence electron.
Alkali metals have a high electropositive polarity.This is so that each alkali metal's atom can readily create a positive ion by releasing its lone valence electron.
What are group 1's chemical characteristics? Electronegativity is a chemical characteristic of Group 1 metals that derives from each metal's atom having only one valence electron.Alkali metals are another name for Group I elements.Sodium, lithium, potassium, cesium, francium, and rubidium are some of them.In seawater, you can find them.Electronegativity is a chemical characteristic of Group 1 metals that derives from each metal's atom having only one valence electron.This refers to the atoms' propensity to attract electrons. Elements from Group 1 have similar properties.All of them are supple silver metals.These metals are highly reactive and have low melting temperatures due to their low ionization energy.As you descend the table, this family becomes more reactive.To learn more about chemical property refer to:
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Mateo should pull out the parsley plants and plant carrots instead.
*
1 point
True
False
This is a food chain puzzle. Note that, based on the information given, if Mateo should pull the Parley Plants and plant carrots, he will still have Swallow Tail Caterpillar to contend with. This is because as already stated, Swallow Tail Caterpillar love to eat carrot leaves. Without it's leaves, the carrot will wither and die. Hence the correct response is FALSE.
What is a food chain?A food chain is a network of linkages in a food web that begins with producer organisms and ends with an apex predator, detritivore, or decomposer species. A food chain also demonstrates how creatures are tied to one another by the food they consume. Each trophic level is represented by a distinct level of a food chain.
Food chains are significant because they reveal the complicated interactions that exist in ecosystems. They can illustrate how each creature is dependent on another for survival. Food chains also show what happens when there is a problem and a producer or eater is lost. Entire towns can be destroyed.
In the above example, the carrots and parsley are primary producers, the swallowtail is a secondary consumer, and the Robin is both a secondary and a tertiary consumer.
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Full Question:
Mateo has a garden. He loves growing all sorts Of plants in it that he can eat. Lettuce is one of his favorite things to eat from his garden. Recently, Mateo decided to start growing parsley in his garden. A few weeks after the parsley started to grow, Mateo looked out of his window. There were more birds in his garden than he had ever seen before! He went outside to see why so many birds had flown in.
Mateo saw something else surprising: his parsley plants were covered in caterpillars! And sadly, almost all of the parsley had been eaten. Mateo wanted to figure out what was going on, so he read a book on gardening. He learned that the birds are robins, and the caterpillars are swallowtail caterpillars. Here is what he read in his book:
Robin:
Robins Eat worms, caterpillars, snails, beetles, crickets, ants spiders, and even daddy long legs. They also eat fruits and berries from bushes and trees.
Swallow Tail Caterpillar:
Swallowtail caterpillars are picky eaters. They only eat carrot leaves and parsley leaves from vegetable gardens.
If Mateo wants to get rid Of the swallowtail caterpillars in his garden, what should he do?
Mateo should pull out the parsley plants and plant carrots instead.
True or False
Consider the product of the following mechanism. How many distinct signals (peaks) would appear in the (proton- decoupled) 13C NMR spectrum for the product? H-Br product 2. 3 3 4 5
In the (proton-decoupled) 13C NMR spectrum for the product, 5, distinct signals (peaks) would show up.
A spectrum is a state that can fluctuate without gaps across a continuum and is not constrained to a particular range of values (plural: spectrums). The term was first used in optics to refer to the rainbow of hues visible light takes on after passing through a prism. As our knowledge of light increased, it became to encompass the full electromagnetic spectrum. Thus, it evolved into a mapping of a range of magnitudes (wavelengths) to a range of attributes, including the perceived "colors of the rainbow" and other properties that correspond to wavelengths outside of the visible light spectrum.
Since then, analogies with spectrum have been used to discuss subjects unrelated to optics. Thus, one could discuss the "spectrum of political opinion".
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of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 128./gmol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 22.35g water 3.66g Use this information to find the molecular formula of X.
Answer: C5H4O4
Explanation:
First, find how many moles of Carbon and Hydrogen we know we have from these reactions.
The molar mass of Carbon Dioxide is 44g, so we have 0.508 moles CO2 and therefore 0.508 moles of Carbon from the original compound.
The molar mass of Water is 18g, so we have 0.203 moles of H2O, and we double the amount of moles of hydrogen because there are two hydrogens per water molecule, so 0.406 moles of hydrogen.
This gives us a ratio of moles 0.508:0.406:X, where X is moles of oxygen. 0.508/0.406 is 1.25 so this ratio is 5:4:X.
We now know how many moles of Carbon and Hydrogen are in the compound and the molar mass of the compound and can plug in values.
5(molar mass carbon) + 4(molar mass of hydrogen) + X(molar mass of oxygen) = 128g
5(12) + 4(1) + X(16) = 128
X=4
So, the formula is C5H4O4.
describe the process by which fats and plant oils are turned into valuable foods such as margarine
Margarine is a fat that has been manufactured by hydrogenation of vegetable oils.
What is the process in which the fats are turned into foods?Fats are the types of nutrients that we can get from our diet. Fats are essential for our body but too much intake of fats may be harmful and dangerous. Fats give energy to our body to perform different functions.
Oils and fats can be refined for daily usage by removing the unwanted compounds that affect the quality of our food and diet. There are four steps by which the fats can be refined for daily usage which are degumming, bleaching, neutralizing and deodorizing.
Generally, fats and oils are formed by the process of a condensation reaction between a single molecule of glycerol and three molecules of fatty acids, three molecules of water are also made in this reaction.
So we can conclude that fats can be extracted from three methods: rendering, mechanical pressing, and extracting with volatile solvents.
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