After a double displacement reaction, the balanced equation and products are [tex]AgNO_{3}[/tex] (aq) + NaCl(aq) >>> AgCl(s)+ [tex]NaNO_{3}[/tex](aq).
In the equation of [tex]AgNO_{3}[/tex] with NaCl silver displaces the sodium from Nacl and forms AgCl while Na reacts with [tex]NO_{3}[/tex] and forms [tex]NaNO_{3}[/tex]. This is an example of double displacement and precipitation reaction.
In an aqueous solution, a double-displacement reaction takes place when the positive and negative ions of two ionic compounds exchange positions to create two completely different compounds. These substances may manifest as precipitates, gases, or molecular substances.
The following equation describes the general form of a double-displacement reaction: AD + BC = AB + CD
There are two types of double displacement reaction: precipitation and neutralization.
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how many valance electrons B (boron) have?
Answer:
3
Explanation:
A quantity of gasoline injected into car engine has a potential chemical energy of 100 j. All of this energy is not converted into useable work because.
A quantity of gasoline injected into car engine has a potential chemical energy of 100 j. All of this energy is not converted into useable work because some energy is wasted as heat.
What is potential energy?
Your body can use the energy created when these molecules are broken down to perform tasks like walking or thinking. The potential energy in food molecules is not the only source, though. Every molecule that makes up the physical universe has potential energy stored inside its bonds.
Let's cross a few stepping-stones to learn why chemical energy has the potential to do work. We'll explore fundamental concepts related to molecules, chemical bonding in general, and some fundamental laws governing chemical processes. You'll see how the net overall energy balance of a chemical reaction determines the potential energy available for use once we've put everything together.
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What is the easiest way to determine whether a molecular structure is polar or non-polar?.
The polarity can be established using the electronegativity (obtained from the periodic table). The best and simplest approach to tell if a molecule is polar or non-polar, though, is to look at its molecule shape.
A molecule is considered to be polar if its core atom has a single pair of electrons. For instance, H2O is polar because the oxygen atom's lone pairs give it a non-symmetrical shape (bent or v-shaped molecular geometry). So, no lone pairs are non-polar, right? Wrong. Not all molecule having a single lone atom at their centre are non-polar. They might be linear or tetrahedral, for sure, but that depends on what is connected to the main atom. For instance, CCl2F2 is polar while CH4 is a non-polar chlorofluorocarbon.
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If pyruvate processing is blocked, what will happen to the levels of oxaloacetate and citrate in the citric acid cycle?.
Oxaloacetate will accumulate and citrate will decrease.
Every cell in the human body contains the energy metabolite oxaloacetate. It plays a crucial role in the Krebs Cycle in the mitochondria, which powers the cells. It is also a crucial precursor metabolite in the process of gluconeogenesis, which produces glucose for the heart and brain when blood sugar levels are low.
Pyruvate is carboxylated to form oxaloacetate (OAA). Adenosine triphosphate is used in this reaction, which needs energy to proceed (ATP).
Daikon radish, sacred lotus, cucurbita (gourd), and tarragon are some foods that contain oxalacetic acid, which makes it a potential biomarker for the consumption of these foods.
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calculate the average atomic mass of chromium, given the following percent abundances and isotopic masses: 4.350% 49.946 amu; 83.790% 51.941 amu; 9.500% 52.941 amu and 2.360% 53.939 amu.
average mass= [tex]49.9461*0.0435 + 51.9405*0.8379 + 52*0.095 + 53.9389*0.0236 or 51.995[/tex] u rounded off to [tex]52.0 u.[/tex]
The final answer is closer to [tex]51.9405[/tex] because more of this isotope existed than the others
How to calculate average atomic mass ?
The average atomic mass for an element is calculated by adding the masses of the element's which of each is multiplied by its natural abundance on Earth. When doing any mass calculations involving elements or compounds, always use average atomic mass, which can be found on the periodic tableThe average atomic mass is useful because its numerical value is equal to the molar mass of the element. This in turn is useful to know how much of a solid to take when you wish to react it with some known quantity of another reagent, because weighing is typically the easiest way to quantify a substanceThe key difference between atomic mass and average atomic mass is that the atomic mass is the mass of an atom, whereas the average atomic mass is the mass of an atom of a particular chemical element calculated by considering isotopes of that element.Calculate the average atomic mass using the atomic masses of each isotope and their percent abundances. Divide each percent abundance by 100 to convert it to decimal form. Multiply this value by the isotope's atomic mass. Add the atomic masses of each isotope together to get the average atomic mass.to know more about average atomic mass follow
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how many grams of solid sodium cyanide should be added to 0.500 l of 0.267 m hydrocyanic acid solution to prepare a buffer with a ph of 10.400? (ka for hydrocyanic acid
0.0163 mol of sodium hydroxide needed to be added 0.500 l of 0.267 m hydrocyanic acid solution to prepare a buffer with a pH of 10.400.
Ka HCN= 4x[tex]10^{-10}[/tex]
Pka HCN = 9.4
pH = Pka + log [tex]\frac{A}{HA}[/tex]
10.400 = 9.4 + log [tex]\frac{A}{HA}[/tex]
log [tex]\frac{A}{HA}[/tex] = 1
[tex]\frac{A}{HA}[/tex] = 10
let W be the mole of NaOH be used
NaOH = [tex]\frac{w mol . 1000ml}{500 .1L}[/tex] = 5 w mol
NaOH + HCN → NaCN +H2O
thus 5 mole of NaOH combines with 5 mole of HCN to for 5 mole of NaCN
[tex]A^{-}[/tex] = (0.1 +5w) M
HA = 0.267 -5w) M
[tex]\frac{A}{HA}[/tex] = 0.1 + 5w/ 0.1 -5w
10 = 0.1 +5w ? 0.1 - 5w
0.1 +5 w = 10 (0.1- 5w)
0.9 = 55w
w = 0.0163 mol
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CHEM PLEASE HELP ASAP
The equation of what happens when iron (III) hydroxide is placed in water is: [tex]Fe (OH)_3 (s) --- > Fe^{3+} (aq) + 3OH^- (aq)[/tex]
Solubility of iron (III) hydroxide in waterIron (III) hydroxide is a salt that is sparingly soluble when placed in water. This is unlike many salts that are either soluble or insoluble in water.
Because of the partial solubility of iron (III) hydroxide in water, an equilibrium is created between the salt and its ionic component. The equation is as follows:
[tex]Fe (OH)_3 (s) < --- > Fe^{3+} (aq) + 3OH^- (aq)[/tex]
In this equilibrium state, a host of factors exist that could shift the equilibrium to the left or to the right. For example, as more and more salt is added to the water, more of the ionic components are formed.
One other factor that could cause a shift in the equilibrium is temperature. The higher the temperature, the higher the solubility and the more the ionic components that are formed.
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I need help with the questions
First part-
Aluminum Ion Charge- +3
fluoride charge- -1
hydrogen charge- +1
chloride ion- -1
silicon ion- 4+ / +4
sulfide ion- -2 / 2-
cesium ion- 1+ / +1
gallium ion- 3+/ +3
oxide ion- 2-/-2
potassium ion- 1+/ +1
carbide ion- 2-/ -2
bromide ion- -1
barium ion- 2+/ +2
Second part- strontium- 2+/ +2
sulfur- -2
phosphorous- 3-/-3
bromine- -1/1-
what is the molarity of a solution of nitric acid if 0.216g of barium hydroxide is required to neutralize 20.00ml of nitric acid
The molarity of a solution of nitric acid if 0.216g of barium hydroxide is 0.1715 M.
Molarity (M) is the quantity of a substance in a sure volume of answer. Molarity is defined as the moles of a solute according to liters of a solution. Molarity is likewise referred to as the molar attention of an answer.
Given;
mass = 0.216
volume = 20 ml = 0.02L
The molar mass of nitric acid = 63
moles = mass/molar mass
= 0.216/63
= 3.43
= 0.00343
Molarity = moles/volume
= 0.00343/0.02
= 0.1715
Molar concentration is the degree of the concentration of a chemical species, especially of a solute in a solution, in terms of the amount of substance in keeping with the unit volume of the solution. In chemistry, the most usually used unit for molarity is the number of moles in step with liter, having the unit image mol/L or mol/dm³ in SI unit.
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Describe a scenario using the combined gas law in which changes occur in the pressure and temperature of an enclosed gas but the volume does not change.
The scenario in which the change in pressure and the temperature is occurred but volume does not change is when pressure and temperature is doubled or tripled.
The formula for combined gas law is given as
(P₁×V₁/T₁)=(P₂×V₂/T₂)
If we change the P₂ and T₂ by a factor of 2, then the combined gas law looks like
(P₁×V₁/T₁)=(2P₂×V₂/2T₂)
The factor 2 is cancelled out from numerator and denominator. Hence, the equation will be
(P₁×V₁/T₁)=(P₂×V₂/T₂)
When we change the pressure and temperature by a factor of 2, or when it is doubled at a time, no change in volume is occurred. Same case is observed when pressure and temperature are tripled.
Therefore, the scenario in which the change in pressure and the temperature is occurred but volume does not change is when pressures are doubled or tripled.
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write the net ionic equation for any precipitation reaction that may be predicted by the solubility rules, when aqueous solutions of aluminum iodide and potassium phosphate are combined.
The reaction between potassium phosphate with aluminum iodide will produce aluminum phosphate and potassium iodide. By the general solubility rules, aluminum phosphate will be insoluble in water resulting in the formation of a precipitate. [tex]K 3 P O 4 ( a q ) + A l I 3 ( a q ) > A l P O 4 ( s ) + 3 K I ( a q )[/tex] Let us break the reaction into a total ionic equation. [tex]3 K + ( a q ) + P O 3 -4 ( a q ) + A l 3 + ( a q ) + 3 I - ( a q ) > A l P O 4 ( s ) + 3 K + ( a q ) + 3 I - ( a q )[/tex] Then, we remove the spectator ions to establish the net ionic equation. [tex]P O 3 - 4 ( a q ) + A l 3 + ( a q ) > A l P O 4 ( s )[/tex]
what is a net ionic equation for a precipitation reaction?
To write the net ionic equation for a precipitation reaction: Use solubility rules to identify a precipitate (if any). Write the formula of the precipitate produced at the right of an arrow. Write the formulae for the ions that react to form that precipitate as reactants at the left of the arrow.Steps for Predicting Precipitation ReactionsStep 1: Look at the given reactants and note that precipitation reactions are double displacement reactions.Step 2: Look at solubility rules and predict products based on the double displacement rule.Step 3: Write out the complete balanced equation.The net ionic equation only shows the precipitation reaction. A net ionic equation must be balanced on both sides not only in terms of atoms of elements, but also in terms of electric charge. Precipitation reactions are usually represented solely by net ionic equations.The solubility of ionic solids in water depends on two things: (1) the energy change, DEdissolve, that occurs when the ionic solid goes into solution as hydrated ions, and (2) the effect of the hydrated ions on the arrangement of the surrounding water molecules, measured by the organization energyto know more about net ionic equation follow
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which is NOT a result of water surface tension
1. water forming spherical drops on all freshly waxed surfaced
2.an insect floating on the surface of water
3. water raising up into a thin glass tube
4. ice floating in liquid water
Ice floating in liquid water is not a result of water surface tension, This is due to ice's lower density than liquid water, a result of its unique hydrogen bonding arrangement.
Option (4) is correct.
Surface tension is a property of liquids, including water, caused by the cohesive forces between their molecules. It results in the formation of a "skin" on the liquid's surface, which gives rise to several observable phenomena.
1. Water forming spherical drops on freshly waxed surfaces: This happens because of the cohesive forces between water molecules, which cause the liquid to minimize its surface area and form spherical shapes.
2. An insect floating on the surface of water: Surface tension allows insects like water striders to walk on water. The cohesive forces hold the water's surface together, enabling the insect to stay afloat.
3. Water raising up into a thin glass tube (capillary action): Surface tension, along with adhesive forces between water and glass, allows water to rise against gravity in thin tubes.
4. Ice floating in liquid water: This is an exception to the usual behavior of substances. Ice is less dense than liquid water, so it floats on the surface due to its unique hydrogen bonding arrangement.
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what should the charge of a sulfide ion be in order for it to have the same electron configuration as that of neutral phosphorus in the ground state?
Sulfide ion (S+) with +1 charge has the same electron configuration as neutral phosphorus in its ground state. With the chemical formula S, Sulphur dioxide is an inorganic anion of Sulphur.
Following is the neutral phosphorus ground state electron configuration at atomic number 15.
phosphorus-15: 1s, 2s, 2p, 6, 3s, 2p
The electronic configuration of sulphur, which has atomic number 16, is once more as follows.
S-16: 1s, 2s, 2p, 6, 3s, 2p, 4.
From the aforementioned electronic configuration, we can infer that sulphur has one more electron in its valence shell than does phosphorus.
Sulphur must therefore release one electron from its valence shell, converting it from S -1e——>S+, to achieve the same electron configuration as phosphorus, which has 15 electrons.
Similar to this, the sulfuric acid ion, S2- - 3e—->S+
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Indicate the direction of polarity of each of the covalent bonds by placing the appropriate delta notation next to each end of the bond.
The delta notation, indicating the polarity of for the presented covalent bonds are:
δ+ C-O δ-
δ- O-Cl δ+
δ+ O-F δ-
δ+ C-N δ-
δ+ C-Cl δ-
δ- S-H δ+
δ+ S-Cl δ-
How delta notation indicate the polar bonds?
Atoms with varying electronegativities form polar bonds.
The polarity direction is denoted using the delta notation.
A partial negative charge (represented by the symbol -) is acquired by the atom with the higher electronegativity, whereas a partial positive charge (represented by the symbolδ +) is acquired by the atom with the lower electronegativity.
Let's consider the following elements with their electronegativities.
C (2.5)
O (3.5)
Cl (3.0)
F (4.0)
N (3.0)
S (2.5)
H (2.1)
The delta notation for the presented bonds are:
δ+ C-O δ-
δ- O-Cl δ+
δ+ O-F δ-
δ+ C-N δ-
δ+ C-Cl δ-
δ- S-H δ+
δ+ S-Cl δ-
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Calculate the change in temperature produced by the addition of 1 kcal of heat to 100 g of steel.
Calculate the change in temperature produced by the addition of 1 kcal of heat to 100 g of steel.
Csteel= 0.118
Change in temp: 84.7 degrees Celsius
Explanation:
1. (Write down all units.)
q= 1
m= 100
C= 0.118
2. (Remember q=mcΔT)
3. (Calculate the amount needed to raise the 100g by 1 degree.)
100 x 0.118= 11.8 c
4. (Convert kcal to cal.)
1 kcal= 1000 calories.
5. (Divide calories given by calories needed.)
1000/11.8= 84.75
an effective hot pack salt can release 5850 j of heat to the surroundings. how many grams of licl are needed to release this amount of heat?
4.01 grams of Licl are needed to release this amount of heat
What does one gram weigh?The gram is a unit of mass in the International System of Units (SI) that is equal to one thousandth of a kilogram. It was originally known as the gramme. Gram. This pen cap weighs around one gram. A weight scale like this one may provide a precise mass readout for many different things.
Mass of Licl required to release 5850J of heat to the surroundings.
Let x g Licl required.
Then x g ×∆H = 5850J
x g × 1.46 × 10³ = 5850
x = 5850/ 1.46 × 10³
x = 4.0068
so 4.01g Licl required.
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how many milligrams of chloramine would you find in one cup (1.0) of drinking water if the concentration is 4.0 ppm?
0.948 mg of chloramine will be found in one cup of drinking water if the concentration is 4.0 ppm.
It is given that concentration of chloramine is 4.0 ppm which equals two 4 mg per litre. It is assumed that one cup of drinking water has a volume of 237 ml.
To calculate the amount of chloramine in one cup of drinking water:
237ml = 0.237L
4.0 ppm = 4g/L of chloramine
Mass of Chloramine in 0.237L = 4 grams/L* 0.237L
Mass of Chloramine = 0.948grams
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Write a chemical equation for the acid-base reaction that occurs when p-phenetidine.
Based on the information provided, it should be noted that an acid-base reaction is a chemical process in which hydrogen ions are transferred between species.
Acid-base reaction: These are the reactions that take place when pure acids and bases are combined.
One of phenetidine's three isomers, P-phenetidine, should be mentioned. Usually, it serves as an intermediary in the synthesis of medicinal medicines.
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A scientist measures the mass of a metal to be 682 grams. There are 1000 grams in a kilogram and a kilogram is equal to about 2. 2 pounds. What is the mass of the metal in pounds?.
The mass of metal in the compound is 1.504 pounds.
What do you understand by metals?A metal is a substance that, when newly prepared, polished, or fractured, exhibits a lustrous appearance and fairly good electrical and thermal conductivity. Metals are often malleable and ductile (can be formed into wires) (they can be hammered into thin sheets). The metallic link formed by the atoms or molecules of the metal gives rise to these characteristics.
An alloy, like stainless steel, a chemical element, like iron, or a molecular molecule, like polymeric sulfur nitride, are all examples of metals.
Given that;
A scientist measures the mass of a metal to be 682 grams
1000 grams = 1Kg
1kg = 2.2 pounds
hence ;
682 grams will be equal to 0.682 kilograms.
and 0.682 kilograms = 1.504 Pounds
so,
the mass of metal in the compound is 1.504 pounds.
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b. how would you prepare 225.0 mL of 1.33 M HCL FROM A 6.00 M stock solution?
c. what volume of 0.2500 M strontium hydroxide is required to completely react with 75.00 mL of 0.07942 M HCl?
B. To prepare 225.0 mL of 1.33 M HCl, measure 49.89 mL of the stock solution and dilute with water to 225 mL
C. The volume strontium hydroxide, Sr(OH)₂ required is 11.91 mL
B. How do I prepare 225.0 mL of 1.33 M HCl?
To prepare 225.0 mL of 1.33 M HCl, we must obtain the volume of the stock solution of HCl needed. This can be obtained as follow:
Molarity of stock solution of HCl (M₁) = 6 MVolume of diluted solution (V₂) = 225 mL Molarity of diluted solution of HCl (M₂) = 1.33 MVolume of stock solution of HCl needed (V₁) =?M₁V₁ = M₂V₂
6× V₁ = 1.33 × 225
6 × V₁ = 299.25
Divide both side by 6
V₁ = 299.25 / 6
V₁ = 49.89 mL
Thus, to prepare 225.0 mL of 1.33 M HCl, measure 49.89 mL of the stock solution of HCl, put it in a 225 mL volumetry flask and dilute with water to obtain the desired volume (i.e 225 mL)
C. How do I determine the volume of strontium hydroxide, Sr(OH)₂ required?
We'll begin by writing the balanced equation for the reaction
2HCl + Sr(OH)₂ —> SrCl₂ + 2H₂O
The mole of the acid, HCl (nA) = 2The mole of the base, Sr(OH)₂ (nB) = 1The volume of strontium hydroxide, Sr(OH)₂ can be obtained as follow:
Molarity of base, Sr(OH)₂ (Mb) = 0.25 MVolume of acid, HCl (Va) = 75 mL Molarity of acid, HClO₄ (Ma) = 0.07942 MVolume of base, Sr(OH)₂ (Vb) =?MaVa / MbVb = nA / nB
(0.07942 × 75) / (0.25 × Vb) = 2
5.9565 / (0.25 × Vb) = 2
Cross multiply
2 × 0.25 × Vb = 5.9565
0.5 × Vb = 5.9565
Divide both side by 0.5
Vb = 5.9565 / 0.5
Vb = 11.91 mL
Thus, the volume of the strontium hydroxide, Sr(OH)₂ required is 11.91 mL
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in which reaction would an increase in pressure at constant temperature have no effect on the relative amounts of the substances present in the equilibrium mixture? all substances are gases.
As pressure rises, the equilibrium will move to the side of the reaction where there are less moles of gas. When the pressure drops, the equilibrium will move to the side of the process where there are more gas molecules.
Why is the equilibrium constant unaffected by pressure?Similar to how concentration has no bearing on Kc's value, pressure has no impact on Kp's.
As a result of the equilibrium shifting in favour of the direction with fewer moles due to an increase in pressure, the pressure falls.
Kp is unchanged because the reactant to product partial pressure ratio remains constant.
According to Charles' law, a gas's volume will double if its temperature doubles.
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which of the following is false? hydration of alkynes with h3o typically requires a mercury catalyst. acid-catalyzed hydration of terminal alkynes affords anti-markovnikov products. acid-catalyzed hydration of terminal alkynes affords ketone products. in the acid-catalyzed hydration of alkynes, an enol intermediate is formed.
Hydration of alkynes with h3o typically requires a mercury catalyst is a false statement.
What is hydration of alkynes?Alkynes are first hydrated by the addition of the first water molecule. But this initial hydration event results in the formation of an enol, an alcohol joined to a vinyl carbon.
Enols instantly go through a particular kind of isomerization process termed tautomerization to create carbonyl groups, such as aldehydes or ketones. With the understanding that aldehydes occur on terminal alkyne carbons, this reaction is referred to as "enol-keto" tautomerization to make things straightforward.
Similar to hydration (adding water) of alkenes, hydration of alkynes necessitates the use of a potent acid, typically sulfuric acid with a mercuric sulfate catalyst.
Therefore, Hydration of alkynes with h3o typically requires a mercury catalyst is a false statement.
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Which 2 elements would be more alike? Li and Be or F and Br? How do you know? Explain.
the density of ethanol, a colorless liquid that is commonly known as grain alcohol, is 0.798 g/ml. calculate the mass of 19.1 ml of the liquid.
Mass of 19.1 ml of ethanol is 15.2418 g
What is density?
The substance's mass per unit of volume is its density (also known as specific mass or volumetric mass density). The Latin letter D can also be used to represent density, however the most common symbol is (the lower case Greek letter rho). Mass divided by volume is the mathematical definition of density.
Temperature and pressure have an impact on a substance's density. For solids and liquids, this variance is often negligible, whereas for gases, it is significantly higher. A loss in volume and subsequent increase in density occur when pressure is applied to an object. With a few exceptions, a substance's density is decreased by expanding its volume as its temperature is raised. In most materials, heating the bottom of a fluid induces convection, or the movement of heat from the bottom to the top, because the heated fluid rises relative to the denser unheated material due to its decreased density.
Given,
density of ethanol(D) = 0.798 g/ml
volume(v) = 19.1 ml
Density = mass/ volume
or D= m/v
mass(m) = D* v
m = 0.798* 19.1= 15.2418 g
Hence, mass of 19.1 ml of ethanol is 15.2418 g.
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calculate the isoionic and isoelectric ph of 0.028320.02832 m valine. enter your answers to the hundredths place.
Answer:
isoelectronic pH = 6.003
Explanation:
isoelectronic pH = (pKa1+pKa2)/2
Methyl orange might be selected as an indicator for the titration of a weak base with a strong acid. Can you estimate the ph at the equivalence point?.
The pH at the equivalence point will be 3.7.
What is methyl orange?Methyl orange is a commonly used pH indicator in titrations because the color change is readily noticeable. It is often used for acid titrations because it changes color at weakly acidic pH. Methyl orange turns red in acidic media and yellow in basic media. Methyl orange is not a natural indicator. It is actually synthesized from sodium nitrate, dimethylaniline, and sulfanilic acid. A diazonium salt is an organic compound having functional groups conforming to the generalized form R−N⁺2X⁻, where R represents any organic group such as alkyl or aryl.
Methyl Orange changes from a basic color to an acidic color during strong acid/weak base titrations, making it a useful chemical indicator. In acidic or basic media, methyl orange exhibits red and yellow colors. During the titration, the solution initially appears yellow due to the high pH.
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What are 5 ways to prevent non communicable diseases?.
Reduce risk factors that are easily altered, as smoking, excessive alcohol consumption, poor diet, insufficient physical activity. Establishing ,enforcing sound legislative protections against non-communicable diseases .
What is a simple communicable disease?A transmittable disease is one that can be spread from one generation to another via a number of routes, such as contact with blood or body fluids, inhalation of an airborne virus, or insect bites.
Why are contagious diseases significant?The design and evaluation of illness preventive and control initiatives as well as the identification of common-source outbreaks depend on the reporting of communicable illness cases. Everybody will probably experience a communicable sickness at some time during their lives.
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What allows the three atoms in a water molecule to stay together? a. Covalent bonds formed by shared electrons between atoms b. Covalent bonds formed by electrons that transfer between atoms c. Ionic bonds formed by electrons that transfer between atoms d. Hydrogen bonds formed only by the electrons of the hydrogen atoms.
Two atoms, in this case oxygen and hydrogen, share electrons to form covalent bonds. Option a is correct as a result.
How do covalent bonds work?The exchange of electrons between atoms forms a covalent connection. This kind of bond happens when two atoms of the same element, or between adjacent elements in the periodic table, come together.
Individual H₂O molecules are held together by powerful interactions between the hydrogen and oxygen atoms, known as covalent bonds.
Each end of the V-shaped H₂O molecule adopts a slightly different charge because oxygen and hydrogen draw the shared electrons from each other in different ways.
Covalent bonds are thus created when hydrogen and oxygen atoms in separate H₂O molecules share electrons. The three atoms in a water molecule can thus remain connected thanks to a covalent connection. Therefore, choice A is right.
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What is the source of electrical current produced by redox reactions?
Answer:
The overall redox reaction is balanced when the number of electrons lost by the reductant equals the number of electrons gained by the oxidant. An electric current is produced from the flow of electrons from the reductant to the oxidant.
Explanation:
N/A
a certain ideal gas is kept at 350 k in a container with a volume of 3.00 cubic meters. if the volume is expanded to 4.00 cubic meters, what will the temperature of the gas be? what is the average kinetic energy of a gas molecule at this temperature
A certain ideal gas is kept at 350 k in a container with a volume of 3.00 cubic meters. if the volume is expanded to 4.00 cubic meters, the temperature of the gas be 466 K.
As per the ideal gas formula :
V1/T1 =V2/T2V1 = initial volumeT1= initial tempV2 = final volume T2 = final tempSo V1/T1 =V2/T2 = 3/350=4/T = 466KThus the temperature of the gas be 466K.Average kinetic energy of a gas molecule at this temperature is calculated by 3/2 kb. kinetic energy = 3/2 x 1.38 x [tex]10^{23}[/tex]x 466.67 = 9.66 x [tex]10^{-23}[/tex] kinetic energy = 9.66 x [tex]10^{-23}[/tex].
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#SPJ4
