AgCl would have the lowest solubility in 0.020 M BaCl2. The maximum amount of a chemical that will dissolve in a given amount of solvent at a given temperature is referred to as its solubility.
There is a wide range in the solubilities of different substances, and this characteristic of a specific solute-solvent pair is obvious. The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant. Ksp. It refers to how much a solute dissolves in a solution. The Ksp value of a substance rises as its solubility does. The least soluble substance is BaCl2, which also has the lowest Ksp of 0.020 M.
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write the common and systematic (IUPAC) names of the ether that has the following structure
CH3---O---CH2CH3
Common name:
Systematic name:
Ethyl methyl ether is the common name for the provided ether (CH3-O-CH2CH3), while methoxy ethane is its Systematic (IUPAC) name.
Write about ether.An oxygen atom is bonded to two aryl or alkyl groups in any organic molecule that belongs to the ether family. Water also has structural similarities to ethers and alcohols, as well as to both ethers and alcohols.
Uses of ether.Ethers are frequently used in the manufacturing industry as extractants & solvents for ester, gums, hydrocarbons, alkaloids, oils, resins, dyes, plastics, lacquers, and paints. They work as dewaxing extractants for lubricating oils. Hospitals use diethyl ether as an anaesthetic. During surgery, anaesthesia aids in putting patients to sleep or making them unconscious.
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a 10.0 ml sample of 0.145 m sulfuric acid is titrated to its endpoint with 15.76 ml of naoh. calculate the naoh concentration.
After solving the equation the concentration of the NaOH is 1.576 mol/L.
What is concentration?Concentration is the ability to focus on one particular thing at a given time. It requires intense focus, mental discipline and effort, as well as the ability to ignore distractions and any other thoughts that may arise. It is an important skill to have in order to accomplish goals and tasks, both in school and in life. It involves being able to focus on the task at hand for an extended period of time, without getting sidetracked or losing focus.
The concentration of the NaOH can be found by using the following equation:
Molarity = (Volume of Titrant (mL) * Molarity of Titrant (mol/L)) / Volume of Sample (mL)
In this case, Molarity = (15.76 mL * 1 mol/L) / 10.0 mL = 1.576 mol/L
Therefore, the concentration of the NaOH is 1.576 mol/L.
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Please reply ASAP!!!!! Do you expect a liter of water from this lake to have more or less thermal energy than a liter of water from the lake on the previous page? Why?
A liter of water from this lake will have more thermal energy than a liter of water from the lake on the previous page.
This is because the water in the second lake is at a higher temperature than the water in the first lake.
How does temperature affect the thermal energy of a substance?The thermal energy and hence, the average kinetic energy of an object's particles increases with increasing temperature. The object's thermal energy grows as the average kinetic energy of its particles rises. As a result, an object's thermal energy rises as its temperature does.
Thus, a substance at a higher temperature has more thermal energy than particles at a lower temperature
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What do l talk about on my timelines?
Timelines are intended to give a general perspective of a series of historical events. Although they don't go into great length, as necessary, connections to photographs, information, and events may be added.
What are Timelines?History textbooks and biographies frequently employ timelines to illustrate what occurred over a specific time period or to a specific person, beginning with the earliest event and going ahead in time. For instance, your own personal chronology can start with your birth.
Timelines are meant to provide a broad overview of a number of historical events.
There may be connections to images, facts, and events, albeit they don't go into great detail unless essential.
Thus, this way, one can have their timeline.
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look at the melting point for the metals in the fourth and fifth periods describe how the position of a metal within a period is related to irs melting point
With the same number of elements and overall structure as period 4, period 5 differs only in having one more post transition metal and one fewer nonmetal.
How do melting and boiling points differ?The major distinction between boiling point and melting point is the temperature at which a liquid's vapour pressure equals its external pressure whereas the melting point is the temperature at which solid and liquid phases are in balance.
How is melting point determined?More energy is required to overcome them the stronger the forces of attraction between the particles are. The melting point rises with increasing energy demand. Therefore, a crystalline solid's melting temperature serves as a gauge.
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Which of the following phase changes involves the transfer of heat from the surroundings to the system?answer choicesCH4(g)→CH4(l), because CH4 molecules in the gas phase must absorb energy in order to move closer together, thereby increasing the intermolecular attractions in the solid state.CO2(g)→CO2(s), because CO2 molecules in the gas phase must absorb energy in order to move closer together, thereby increasing the intermolecular attractions in the liquid state.H2O(l)→H2O(s), because H2Omolecules in the liquid phase must absorb energy in order to create a crystalline structure with strong intermolecular attractions in the solid state.NH3(l)→NH3(g), because NH3molecules in the liquid phase must absorb energy in order to overcome their intermolecular attractions and become free gas molecules.
When heat is added to a system, the process becomes endothermic, and endothermic processes related to phase change occur when going from solid to liquid or from liquid to gas, so heat is eventually transferred from the environment to the environment increase.
System - He considered all four options of moving from gas to liquid requiring the release of energy, as this is the source of heat. The change from gas to solid also requires the release of energy, and the change from liquid to solid requires the release of energy. But as we climb the ladder of physical states, we progress from solids to liquids to gases. Next, we need to add energy to the only one we ascend.The ladder is the last 1 d where the ammonia liquid moves to the ammonia gas, overcoming the intermolecular attraction and pushing the ammonia molecules into the liquid It must be absorbed to keep it together inside.
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“Write a disassociation equation for each of the following”
(Also please write an explanation on how you did it)
Answer:
The dissociation equation for MgCl2 in water is MgCl2 arrow Mg2+ + 2Cl-.
Looking at the formula Al(NO3)3, we notice that for one Al ion, there are three NO3 ions. Therefore when aluminum nitrate dissociates in water, it produces one aluminum ion and three nitrate ions per each formula unit.
Al(NO3)3 (aq) + 3 H2O (l) → 3 HNO3 (aq) + Al(OH)3 (s)
2HNO3⇌NO2++NO3−+H2O.
a typical sugar cube has an edge length of 1 cm. if you had a cubical box that contained a mole of sugar cubes, what would its edge length be? (one mole
the edge length of a cuboidal box that contains a mole of sugar cubes would be 5.04 cm.
What is cuboidal box?A cuboidal box is a three-dimensional shape with six equal-sized, square faces that meet at 90 degree angles. It is a form of rectangular prism, and is commonly used for shipping and storage of items. Cuboidal boxes are made from a variety of materials, including cardboard, wood, and plastic.
A mole is a unit of measurement for the amount of a substance and is equal to 6.02214076 × 10^23 particles or atoms of the substance. Therefore, the edge length of a cuboidal box that contains a mole of sugar cubes would be the cube root of the total volume of the sugar cubes, which is the edge length of each cube cubed.
The volume of a single sugar cube is (1 cm)^3 = 1 cm^3. Therefore, the volume of a mole of sugar cubes is (6.02214076 × 10^23) cm^3.
To find the edge length of the box, take the cube root of the volume of the sugar cubes, which is (6.02214076 × 10^23)^(1/3) cm = 5.04 cm.
Therefore, the edge length of a cuboidal box that contains a mole of sugar cubes would be 5.04 cm.
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A bond energy tells us both how much energy is required to break 1 mole of that bond AND the energy that will be released when 1 mole of that type of bond is formed.
The bond energy is the energy required to break the one mole of the such chemical bond and the energy released when the mole of the bond is formed.
The Bond energy is also called as the average bond enthalpy or we can say that bond enthalpy. The bond energy is the amount of the energy required to break the one such of the chemical bond. The bond energy is the energy released when chemical bond formed.
The example is :
Cl - Cl ----> 2Cl
The bond energy is , ΔH = +59 kcal/mol
The bond energy is the measurement of the bond strength.
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Complete this table relating the values of Ecell and ΔG to the Q/K ratio
Q/K Ecell ΔG
<1
=1
>1
Drag these labels into table as appropriate:
>0, =0, <0
The finished table is provided below: Q/K Ecell delta G, 1 >0 0, =1 =0 =0, and >1 0 >0.
What in chemistry is an E cell?Hint: In electrochemistry, the potential difference between the two half cells is measured by the term "E cell." Electrons go from one half cell to the other due to this potential difference. By applying the Nernst equation, it may be determined.
Ecell in the Nernst equation: what is it?Ecell is the cell's potential. E0 is the potential of a cell under ideal circumstances. R is the constant of all gases. T is the temperature. n is the total number of electrons moved during the redox reaction.
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2. atoms are typically spaced about 0.2 nm apart. at that spacing, how many atoms would be found in a line 2.5 inches long?
The number of atoms would be found in a line 2.5 inches long is 3.17510^12 atoms
What three sorts of atoms are there?The three fundamental types of particles that comprise an atom are protons, electrons, and neutrons. Protons and neutrons generally have the same mass, however the mass of the electron is quite small. A negative has no charge, while a proton has a positive charge.
2.5 inches is equal to about 63.5 centimeters.
There are 10^10 nanometers in one centimeter.
=> (10^10)x(63.5) = 6.3510^11 nanometers
At an atom spacing of 0.2 nanometers:
=>6.3510^11 / 0.2 = 3.17510^12 atoms in a line
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Consider the following tetra-substituted cyclohexane: a. Draw both chair conformations of this compound. b. Determine which conformation is more stable. c. At equilibrium, would you expect the compound to spend more than 95% of its time in the more stable chair conformation? Show any necessary calculations.
The conformation with the axial methyl and chlorine substituents is more stable.
What is chlorine substituents?Chlorine substituents are chemical groups or molecules that are attached to other molecules or substances, typically through a covalent bond.
Since the axial methyl and chlorine substituents are more stable, the compound would spend more than 95% of its time in this conformation. To calculate this, we can use the Boltzmann equation.
ΔG = -RTlnK
Where K is the equilibrium constant.
K = e-ΔG/RT
For a temperature of 25°C, R=8.314 J/K⋅mol.
ΔG = -8.314⋅25⋅lnK
If we assume that K is greater than 95%, then lnK must be a positive number.
lnK = ΔG/8.314⋅25
ΔG = 8.314⋅25⋅ln95
ΔG = 44.2 kJ/mol
Therefore, the compound will spend more than 95% of its time in the more stable conformation if the energy difference between the two conformations is greater than 44.2 kJ/mol.
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Classify each of the following as either a Lewis acid or a Lewis base.?
1. B(OH)3
2. P(CH3)3
3. BeCl2
4. CN^-
question mode multiple choice question an unknown element has two isotopes: one whose mass is 68.926 amu (60.00% abundance) and the other whose mass is 70.925 amu (40.00% abundance). the average atomic mass of the element is equal to .
The average atomic mass of the element is calculated to be 69.7256 amu.
What is average atomic mass?The average atomic mass of an element is the weighted average mass of atoms in naturally occurring sample of the element.
Given, atomic mass of isotope-1 = 68.926 amu ; percent abundance of isotope-1 = 60.00% ; atomic mass of isotope-2 = 70.925 amu ; percent abundance of isotope-2 = 40.00%
Fractional abundance of isotope-1 = 0.6000
Fractional abundance of isotope-2 = 0.4000
Average atomic mass of an element = A
A = ∑ [Atomic mass of an isotope + fractional abundance of isotope]
A= 69.7256 amu
So, the average atomic mass of the element is equal to 69.7256 amu.
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Why is a hurricane classified as a natural hazard, while air pollution, acid rain, and ozone depletion are not?
A. A hurricane can vary in severity and destructiveness.
B.
A hurricane is a sudden, destructive event that cannot be predicted accurately.
0000
C.
A hurricane causes significant damage across a wide area.
D. A hurricane is a natural process, not the result of human activity.
Answer: D. A hurricane is a natural process, not the result of human activity.
Explanation: A hurricane is classified as a natural hazard because it is a natural phenomenon that occurs due to specific meteorological conditions, such as high ocean temperatures and specific wind patterns. It is not caused by human activity, unlike air pollution, acid rain, and ozone depletion, which are largely the result of human activities such as industrialization and deforestation. While hurricanes can vary in severity and destructiveness, and can cause significant damage across a wide area, it is ultimately the natural origin of the event that classifies it as a natural hazard.
in a reaction, a reactive intermediate . . . can never be isolated due to its high energy. is an energy maximum between 2 transition states. is an energy minimum between a reactant and a product. is always equal to the number of steps in a reaction. is an energy minimum between 2 transition states.
Because it always equals the total number of steps in a process, a reactive intermediate.
What is a reaction in science?In a chemical reaction, one or more chemicals, usually known as reactants, change into one or more other compounds, frequently referred to as products. Chemical parts or chemical elements make up substances. A response is a behavior, propensity, or course of action that is different from what was first intended. Decisions are taken in the heat of the moment without much thought or consideration of the potential repercussions. Reaction: Making a declaration in response to another person's action or remark.
What are examples of reactions and what causes chemical reactions?Changes in color, temperature, gas production, or precipitant formation are common outcomes of chemical reactions. Combustion, digestion, and cooking are a few straightforward instances of daily reactions.
Atoms create and break chemical bonds during chemical reactions. Reactants are the molecules that initiate a chemical reaction, and products are the compounds that are created as a result of the reaction.
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what is required in order to have an effective collision? [select all that apply] group of answer choices a collision with transfer of sufficient energy to overcome the activation energy a collision simultaneously involving three or more reactants. a collision of the correct orientation between reactants. a slow and gentle collision so that the reactants can form a bond instead of bouncing off one another.
Reactant particles need to have a certain minimum amount of energy in order to make an effective collision. The activation energy is the energy that starts the reaction.
What three conditions must be met for a reaction to take place?A reaction can only happen if three things take place.The atoms must collide.In order for new bonds to form, molecules must collide with sufficient force to start breaking the existing connections. ( Remember activation energy).Molecules must collide with the correct orientation.What in collision theory is EA?E is the constant 2.7183, Ea is the activation energy expressed in joules per mole, and. The frequency factor, or A, is a constant that depends on the frequency of collisions and the orientation of the reacting molecules.
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A sample of iron fillings and sulphur were put in a boiling tube and heated for 5 minutes. State and explain the observations made.
Write a word equation for the reaction taking place
When a sample of iron fillings and sulfur were put in a boiling tube and heated for 5 minutes chemical change takes place and iron sulfide is formed which is black in color.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
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Which of the following BEST summarizes the relationship between dehydration reactions and hydrolysis? - Dehydration reactions can occur only after hydrolysis- Hydrolysis occurs during the day and dehydration happen at night - Dehydration reactions occur only in animals and hydrolysis reactions occur only in plants. - Hydrolysis creates monomers and dehydration reactions destroy them - Dehydration reactions assemble polymers and hydrolysis breaks them down
Dehydration reactions assemble polymers, and hydrolysis breaks them down is the best explanation of relationship between dehydration reactions and hydrolysis.
Dehydration is the reaction that combines monomers to form polymers, while hydrolysis breaks polymers down into monomers.
It is called a dehydration reaction because water molecules are released when the monomers combine. This happens because one monomer has a hydrogen atom (-H) at one end waiting to bond to a hydroxyl group (-OH) on another monomer.
The difference between hydrolysis and dehydration is that hydrolysis is the breaking down (dissolution) of large molecules into smaller molecules, while dehydration is the removal of water with the help of dehydrating agents to obtain new products. called dehydration condensation.
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A borrower received a 30-year ARM mortgage loan for $200,000. Rate caps are 3/2/6. The start rate is 3.50% and the loan adjusts every 12 months for the life of the mortgage. The index used for this mortgage is LIBOR (for this exercise, 3.00% at the start of the loan, 4.45% at the end of the first year, and 4.50% at the end of the second year). The margin on the loan is 3.00%, which remains the same for the duration of the loan.
The margin on the loan is 3.00%, which remains the same for the duration of the loan.
(1) The initial rate (start rate) the borrower will pay during the first year is 3.50%.
(2) To calculate the interest rate after the first rate adjustment, we must use the "stair step method" which involves comparing the fully indexed rate (FIR) to the rate cap and the initial rate. The index rate used for this mortgage is MTA, which is 4.45% at the end of the first year. The margin on the loan is 3.00%, which remains the same throughout the loan.
FIR = 4.45% + 3.00% = 7.45%
The rate cap for the first year is 3%, so the interest rate can increase by a maximum of 3%.
The interest rate the borrower will pay after the first rate adjustment is 3.50% + 3% = 6.50%.
(3) To calculate the fully indexed rate (FIR) after the second year, we add the index rate to the margin:
FIR = 4.50% + 3.00% = 7.50%
(4) The rate cap for the second year is 2%, so the interest rate can increase by a maximum of 2%.
The maximum interest rate the borrower will pay during the 30-year term for this loan is 3.50% + 3% + 2% = 8.50%.
(5) If the interest rate is at its maximum, the MTA index would have to be at least 8.47% in order to reach the maximum interest rate, assuming that the margin remains 3.00%.
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How is an empirical formula calculation related to a percent composition calculation?
Take the percentages divide them by the atomic relative mass of the atoms. After dividing you will get the values. Divide all the values with the smallest value which you get and by doing this you will get a ratio and this will be the empirical formula.
What is meant by smallest value?The smallest value in a list of numbers is referred to as the minimum (the greatest value is called the maximum).
The lowest point on a vertex is the minimal value of a function. Your quadratic equation will have a minimal value if it contains a positive term.
By graphing the function or by applying one of the two equations, you can determine this minimum value.
The lowest point on a vertex is the minimal value of a function. Your quadratic equation will have a minimal value if it contains a positive term.
By graphing the function or by using one of the two equations, you can determine this minimum value.
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Some unicellular organisms are sealed in a bottle with water, CO2, and some inorganic nutrients. Which of these is not a valid conclusion?A. If they grow only in sunlight, they could be eukaryotes or prokaryotesB. If they don?t grow in sunlight or in darkness, they could be eukaryotesC. If they grow in the dark or light after you add organic compounds, they could be eukaryotesD. If you add organic compounds and they grow only in sunlight, they must be eukaryotesE. If they grow in the dark after you add organic compounds, they could be prokaryotes
Some unicellular organisms are sealed in a water bottle with CO2 and some inorganic nutrients. B) If they don't grow in sunlight or in darkness, they could be eukaryotes is not a valid statement.
In unicellular organisms, oxygen diffuses through the cell membrane into the cell. Carbon dioxide diffuses out of the cell as soon as the carbon dioxide concentration inside the cell is higher than outside the cell. Some microorganisms, including some bacteria and fungi, can survive without oxygen. Single-celled organisms rely on diffusion to obtain some of the resources necessary for life and to remove waste products. It is no coincidence that almost all single-celled organisms live in water-based environments where dissolved nutrients are readily available just outside the cell membrane.
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Cellular isozymes of pyruvate kinase are allosterically inhibited by:A) high concentrations of AMP.B) high concentrations of ATP.C) high concentrations of citrate.D) low concentrations of acetyl-CoA.E) low concentrations of ATP.
High ATP concentrations allosterically block the cellular homologs of pyruvate kinase.
Why does ATP stop phosphofructokinase from working?Phosphofructokinase activity was hindered by low ATP concentrations through lowering the enzyme's affinity for fructose 6-phosphate, the other substrate. Phosphofructokinase was similarly inhibited by citrate and other tricarboxylic acid cycle intermediates.
During gluconeogenesis, which of the these enzymes requires ATP?The reactions of gluconeogenesis, starting with pyruvate, are as follows: Pyruvate carboxylase uses the mitochondrion to carboxylate pyruvate to create oxaloacetate. Pyruvate carboxylase needs biotin as a cofactor and ATP as such an activating molecule.
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Violet has found a container of aluminum bromide that says it contains 3.09 moles of AlBr3. What is the mass of this sample of aluminum bromide? Please round your answer to two digits after the decimal point, and remember to include correct, complete units (including substance formula).
The mass of 3.09 moles of [tex]AlBr_3[/tex] would be 825.03 grams.
Calculating mass from molesThe number of moles present in the mass of a substance is the ratio of the mass of the substance and the molar mass of the substance.
In other words, mole = mass/molar mass. Making the mass the subject of the formula:
mass = mole x molar mass.
Molar mass of [tex]AlBr_3[/tex] = 267 g/mol
Mass of 3.09 moles [tex]AlBr_3[/tex] = 3.09 x 267
= 825.03 grams
In other words, the mass of the 3.09 sample of aluminum bromide would be 825.03 grams.
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for the reaction below: a. estimate the gas phase enthalpy change using bond dissociation enthalpies from the owl chemistry tables/appendix (button on the left). include algebraic sign and units. b. is the reaction exothermic or endothermic? c. is the reaction likely to proceed spontaneously in the direction written? : mark this question for later review.
a) DH^ r x n=-1∅7 k/ m o l
b) As DH is negative so it is exothermic.
c) it proceeds spontaneous in forward direction.
A) ch3 ch3
| |
CH3-C-CH3 +Br^2 .CH3-C-CH3
| |
H Br
+H-BR.
DH^ r x n=Σ Bonds^ broken-Bonds^ formed
=DH(C-H)+DH(Br-Br)
=-DH(C-Br)+DH(H-Br)
=263+192-(366+276)
DH^ r x n= 455-642
DH^ r x n=-1∅7 k/ m o l
b) As DH is negative so it is exothermic.
c) it proceeds spontaneous in forward direction.
The liquid/gas phase change, like the solid/liquid phase change, requires energy. The enthalpy of vaporization (or heat of vaporization) is the amount of energy required to convert a liquid to a gas,
denoted as H v a p.
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The molar solubility of Ca(OH)2 was experimentally determined to be 0.020 M. Based on this value, what is the Ksp of Ca(OH)2
The molar solubility of Ca(OH)2 was experimentally determined to be 0.020 M. Based on this value, the Ksp of Ca(OH)2 is 0.040.
The Ksp (solubility product) is a measure of the maximum solubility of a substance in a solution at equilibrium. The Ksp of a substance represents the product of the molar concentrations of the ions that make up the solute at equilibrium. In the case of Ca(OH)2, it is the product of the molar concentrations of Ca2+ and OH−, which is expressed as
Ksp = [Ca2+][OH−]
The molar solubility of Ca(OH)2 is the maximum molar concentration of Ca2+ and OH− ions that are present in an equilibrium solution. By substituting the molar solubility (0.020 M) into the Ksp equation, we can calculate the Ksp of Ca(OH)2.
Ksp = [Ca2+][OH−] = 0.020 M
Since the molar concentrations of Ca2+ and OH− ions are equal, we can simplify the equation to : Ksp = [Ca2+]2 = 0.020 M, Solving for [Ca2+], we get [Ca2+] = √0.020 M,The Ksp of Ca(OH)2 is then Ksp = [Ca2+]2 = (√0.020 M)2 = 0.040 M
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How to write chemical formulas of ionic compounds and how are they named?
Ionic compounds are composed of positively charged ions (called cations) and negatively charged ions (called anions). The chemical formula of an ionic compound is written by combining the chemical symbol for the cation and the chemical symbol for the anion.
For example, the ionic compound formed by the cation sodium (Na+) and the anion chloride (Cl-), would be written as NaCl.
When writing the chemical formula for an ionic compound, the cation is written first followed by the anion. This is because the cation and anion are attracted to each other and they combine to form a neutral compound.
Naming ionic compounds follows specific rules:
The cation name is the same as the element name.In summary, to write the chemical formula of ionic compounds, one must know the ionic charges of the elements and to name them, one must know the element names and the suffix -ide, if the cation has variable charge use roman numeral to indicate its charge.
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which phrase describes an atom?
(1) a negatively charged nucleus surrounded by positively charged protons
(2) a negatively charged nucleus surrounded by positively charged electrons
(3) a positively charged nucleus surrounded by negatively charged protons
(4) a positively charged nucleus surrounded by negatively charged electrons
The correct phrase that describes an atom is option 4. a positively charged nucleus surrounded by negatively charged electrons.
What is an atom ?Atoms are the basic units of every substance in the universe. Atoms are composed of subatomic particles electrons, protons and neutrons. The core of an atom is called the nucleus.
The positively charged protons and neutral particles neutrons are located inside the nucleus. The negatively charged electrons are revolving around the nucleus.
The electrons experience an electrostatic attraction from the protons and the nuclear pull from the center which keeps it surrounding the atom. hence option 4 is correct.
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40 points will give brainliest!!
0.50 moles of gas take up 10.5 L
of space under constant pressure
and temperature conditions.
What volume is required to hold
2.0 moles of the gas?
Answer:
The volume required to hold 2.0 moles of the gas is 21 L. This is because the volume of a gas is directly proportional to the number of moles of gas present (provided that the temperature and pressure remain constant). Therefore, if 0.50 moles of gas takes up 10.5 L of space, then 2.0 moles of the gas would take up 2 * 10.5 L = 21 L of space. This proportionality can be expressed mathematically as:
V1/n1=V2/n2
Where V1 and V2 are the volumes of the gases, n1 and n2 are the number of moles of the gases, and the temperature and pressure are constant.
Answer:
The volume required to hold two moles of the gas is 42 L
Explanation:
By using ratio set up of moles and volume;
moles : volume
0.50 : 10.5
2.0 : X
Thus X would be equal to:
(2.0 x 10.5)/0.50
= 21/0.50
= 42 L
if 0.16 mole of hco- is placed into 1.00 l of solution, what will be the equilibrium concentration of co3 2-
According to the question: At equilibrium, the concentration of CO3 2- will be 0.16 moles/L.
What is equilibrium?Equilibrium is a state of balance between two opposing forces. It is a state of rest or balance caused by the equal action of opposing forces. This can be found in many areas of daily life, from the economy to chemical reactions. In economics, equilibrium occurs when supply and demand are equal and in balance, resulting in a market price that does not change.
This is because the reaction of HCO- and CO2 can be described as a simple one-to-one reaction:
HCO- + CO2 <---> H2CO3 <---> H+ + CO3 2-
Since the amount of HCO- and CO2 are equal, the amount of CO3 2- produced will also be equal. Therefore, the equilibrium concentration of CO3 2- will be 0.16 moles/L.
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