When potassium and chlorine form a chemical compound, the atoms

a. become less stable, and covalent bonds are
formed

b. become more stable, and covalent bonds are
formed

c. become less stable, and ionic bonds are
formed

d. become more stable, and ionic bonds are
formed

Answer: 0.814 M MgS

Explanation:

I am assuming that 34.1 is in Grams if not this answer is propably not correct.

34.1 g MgS / 56.369 MgS(molar mass from Periodic table) = 0.605 moles

Molarity - moles / Liter

M= 0.605 / 0.743 Liter =0.814 M

Answer:

Total pressure increased

Explanation:

When gas C is added in the vessel then number of mole increases and number of collision depends on the number of molecules present in the vessel and on adding gas C ,mole also increases hence  number of collision increases therefore pressure also increases because number of collision increases.

Total pressure increases.

Answer:

It's D.  On the surface of the solid.

Explanation:

If the reactant is a solid, the surface area of the solid will impact how fast the reaction goes. This is because the two types of molecule can only bump into each other at the liquid solid interface, i.e. on the surface of the solid. So the larger the surface area of the solid, the faster the reaction will be.

Answer:

kg, m^3, kg/m^3

Explanation:

the SI units for these are:

mass: kilogram

volume: cubic meter

density: kilogram per cubic meter

Answer:

methane

Explanation: methane is obtained from the decaying of flora and fauna mostlyunder damp

Explanation:

Tidal range is the difference of the mean high tide level and the mean low tide level.

=> Tide range = 0.66m - (-0.55m) = 1.21m.

Answer:

Tidal Change=0.66-(-0.55)=0.66+0.55 = 1.21 meters

Explanation:

Tidal Change is the change in the mean high tide level and mean low tide level.

Tidal Change(m) =High tide level(m) - Low tide level(m)

Explanation:

It is the emission of electron from a metal under the effect of light is known as photo electric effect

I hope this imformation help full for you

The new volume of the balloon after heating it to a temperature of 51 °C is approximately 2.39 L.

Charles's law states that "the volume occupied by a definite quantity of gas is directly proportional to its absolute temperature.

It is expressed as;

\(\frac{V_1}{T_1} =\frac{V_2}{T_2}\)

Given that:

Substituting the given values and solve for V₂:

\(V_1T_2 = V_2T_1\\\\V_2 = \frac{V_1T_2}{T_1} \\\\V_2 = \frac{2.2\ *\ 324.15}{298.15 }\\ \\V_2 = 2.39 \ L\)

Therefore, the final volume is 2.39 litres.

Learn more about Charles's law here: https://brainly.com/question/23122443

#SPJ1

Answer:

The reaction of 4-acetyl anisole (also known as p-methoxyacetophenone) with hydroiodic acid (HI) results in the cleavage of the O-methyl group of the anisole ring, leading to the formation of iodobenzene and acetophenone. The balanced equation for this reaction is C9H10O2 + HI → C6H5I + C8H8O.

So, the product of the reaction of 4-acetyl anisole with HI is a mixture of iodobenzene and acetophenone. The specific ratio of these products will depend on the reaction conditions, such as the temperature and concentration of the reactants.

It's worth noting that the reaction between 4-acetyl anisole and HI is an example of a nucleophilic aromatic substitution reaction, which involves the replacement of a leaving group (in this case, the O-methyl group) on an aromatic ring by a nucleophile (the iodide ion from HI).

If 60 grams of the substance are added to 100 g of water, the solution can be categorized as supersaturated.

The graph shows the number of grams that can be dissolved in 100 grams of water at different temperatures. In general, solubility increases with temperature.

According to the graph, at a temperature of 30°C, it is possible to dissolve a total of 48 to 49 grams of \(KNO_{3}\). This information implies that if we add 60 grams at this temperature not all the substance would be dissolved, and therefore the solution would be supersaturated.

Learn more about solubility in https://brainly.com/question/31493083

#SPJ1

The human population grew from 1 billion in the year 1800 to approximately 7.8 billion in the year 2021.

In the year 1800, the estimated global human population was around 1 billion. Over the next two centuries, significant advancements in technology, medicine, agriculture, and improved living conditions contributed to a rapid increase in population.

The growth rate of the human population began to accelerate in the 20th century. By the year 1927, the global population reached 2 billion. It took just 33 years for the population to double, reaching 4 billion in 1960. The population continued to grow at an unprecedented rate, with 6 billion people on Earth by the year 1999. As of 2021, the estimated global population stands at approximately 7.8 billion.

This remarkable growth in population can be attributed to several factors, including advancements in healthcare leading to reduced infant mortality rates, improved access to education and contraception, increased agricultural productivity, and overall socio-economic development.

It's important to note that population growth has not been uniform across all regions. Different countries and regions have experienced varying rates of population growth due to factors such as fertility rates, mortality rates, migration patterns, and government policies.

For more such questions on population visit:

https://brainly.com/question/30148263

#SPJ8

Answer:

your answer would be false.

Explanation:

prevailing winds blow east-west rather than north-south.

Hsvhpsvuwgycwhusvywgogwitcsuovsigsviyscyisvyos

Answer: Oxide anion. Oxide ion. Atomic oxygen(2-) Oxygen, ion(O2-)

Description: Oxide(2-) is a monoatomic oxyge...

Molecular Formula: O-2

Synonyms: oxideoxide(2-)16833-27-5Oxide a...

Molecular Weight: 15.999

Explanation: I hope this helps.

Answer:

\(\% H_2O=51.2\%\)

Explanation:

Hello!

In this case, since the percent water is computed by dividing the amount of water by the total mass of the hydrate; we infer we first need the molar mass of water and that of the hydrate as shown below:

\(MM_{MgSO_4* 7H_2O}=120.36 g/mol+7*18.02g/mol\\\\MM_{MgSO_4* 7H_2O}=246.5g/mol\)

Thus, the percent water is:

\(\% H_2O=\frac{7*MM_{H_2O}}{MM_{MgSO_4* 7H_2O}} *100\%\\\\\)

So we plug in to obtain:

\(\% H_2O=\frac{7*18.02}{246.5} *100\%\\\\\% H_2O=51.2\%\)

Best regards!

The compound that has a functional group containing two oxygen atoms is peroxide. In addition to peroxides, there are other compounds that contain functional groups with two oxygen atoms. These include carboxylic acids and esters.

Peroxide compounds, such as hydrogen peroxide (H₂O₂) or organic peroxides, have a functional group (-O-O-) where two oxygen atoms are bonded together. This group is responsible for the characteristic properties and reactivity of peroxides.

Carboxylic acids: Carboxylic acids have the functional group -COOH, which consists of a carbonyl group (C=O) and a hydroxyl group (-OH) bonded to the same carbon atom. While carboxylic acids have one oxygen atom from the carbonyl group, the hydroxyl group provides the second oxygen atom.

Esters: Esters have the functional group -COO-, which consists of a carbonyl group (C=O) and an oxygen atom (-O-) bonded to the same carbon atom. This arrangement gives esters two oxygen atoms within their functional group.

Hence, the compounds with functional groups containing two oxygen atoms include peroxides, carboxylic acids, and esters.

Learn more about functional groups here:

https://brainly.com/question/28563874

#SPJ 2

Explanation:

Many meteorites have iron or nickel in them, so they are heavier (and denser) than Earth rocks. Some meteorites have pits (regmaglypts) on the outside, which look like deep thumbprints. Meteorites are not bubbly, and do not have holes. Meteorite are usually not round.

Answer:

Explanation:

Carbon Dioxide-CO2

To get molecules, we must convert grams to moles and moles to atoms using Avogadro's number.

Molar mass of CO2=

C:12.0g+O:16.0gx2=44.0g CO2

25.0g CO2 | 1 mol CO2 | 6.02x10 23 molecules CO2

= 3.42x10 23 molecules CO2

1 | 44.0g CO2 | 1 mol CO2

Now to get the number of oxygen atoms.

Since there are 3 atoms in CO2 and 2 of them are oxygen, we will divide by 3 (1.14x10 23) and multiply by 2 (2.28 x10 23)

So the number of oxygen atoms in 25.0 grams of CO2 is 2.28x10 23 or 228 000 000 000 000 000 000 000

Answer:

Solubility product constant

Solubility

Saturated Solution

Common ion effect

Molar Solubility

Explanation:

If i have the ionic compound KNO3 for instance; the solubility product of the compound is the  product of the molarities of the dissolved ions, raised to a power equal to the ion's coefficient in the balanced chemical equation.

E.g

KNO3(s) ------> K^+(aq) + NO3^-(aq)

Ksp = [K^+] [NO3^-]

The solubility of any given substance is defined as mass of the substance in grams that dissolves in 100 mL of water.

A saturated solution is one that has dissolved the maximum amount of  solute at a given temperature. If more solute is added, it will not dissolve.

If i add AgCl to a solution of HCl, the solubility of AgCl in HCl solution is found to be less than its solubility in pure water because of the presence of a common Cl^-. Hence, common ion effect is a decrease in the solubility of an ionic compound as a result of the addition of a common ion to the solution.

The molar solubility of a substance is defined as the maximum number of moles of a substance that will dissolve in 1 L of solution.

The terms used to describe the followings are:

The molarity is the concentration unit used for the determination of the moles of solute in the liter of solution.

For example:

\(\rm H_2A\;\rightarrow\;2H^+\;+A^-\\Solubility\;product\;constant=[H^+]^2[A^-]\)

The solution with the maximum amount of salt dissolved at a certain temperature is termed the saturated solution. Further addition of the solute results in the precipitation of the solute in the solution.

The effect raised with the addition of the common ions is termed the common ion effect.

Learn more about molarity, here:

https://brainly.com/question/12127540

Answer:

C.) No. of electrons

Explanation:

A.) is incorrect. The atomic number represents the number of protons in an element. Nitrogen (N) and sodium (Na) always have a differing amount of protons.

B.) is incorrect. The mass number represents the number of protons and neutrons in an element. The number of neutrons and protons are specific to each element (disregarding isotopes). When elements ionize, these amounts are not altered.

C.) is correct. When an element becomes an ion, the number of electrons change. When nitrogen gains 3 electrons and sodium loses 1 electron, they end up having the same number of electrons (10).

D.) is incorrect. When elements ionize, the number of neutrons does not change. The only way two different elements could have the same number of neutrons is if at least one of the elements is an isotope. Isotopes are two or more atoms of the same element that differ in their amounts of neutrons.

A possible gold variant has a mass of 192. Yes, it has 79 neutrons in this variant.

To learn more about neutrons, refer to:

https://brainly.com/question/26952570

#SPJ13

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

84 oz of 2% acid solution and 48-84 = -36 oz of 10% acid solution must be mixed to make 48 oz of a 7% acid solution.

An acid solution is described as a liquid mixture that occurs when hydrogen ions are released when combined with water.

We have that  x oz of 2% acid solution be mixed with (48-x) oz of 10% acid solution.

The total amount of acid in the 2% solution is 2% * x oz = 0.02x oz.

The total amount of acid in the 10% solution is 10% * (48-x) oz = 1 * (48-x) oz.

The total amount of acid in the 48 oz mixture is 0.02x oz + 1 * (48-x) oz = 0.07 * 48 oz = 3.36 oz.

Hence we can calculate that :

0.02x + 1 * (48-x) = 3.36 and solve for x

0.02x + 48 - x = 3.36

0.02x - x + 48 = 3.36

Adding x to both sides:

0.02x + 48 = 3.36 + x

Subtracting x from both sides:

0.02x + 48 - x = 3.36

Dividing both sides by 0.02:

x = 84 oz

Learn more about acidic solutions at: https://brainly.com/question/24255408

#SPJ1

The following equality statistic is available for the BC X (s) region states:

The following data is obtained using the equilibrium diagram:

shows the various categories that can be found in various temperatures and shapes.

It demonstrates how one object can solidly melt over another.

Describes the amount of the temperature at which the material system solidifies or solidifies.

The rate of reaction is equal to the rate of reaction in an equilibrium situation.

Examples of equilibrium include a book on the table, liquid in a tightly sealed container, full solution, ionic compounds in polar solvents, and the synthesis of ammonia.

Learn more about equilibrium here:
https://brainly.com/question/13463225

#SPJ9

Answer: The burning of fossil fuels releases carbon dioxide, methane and other greenhouse gases into the atmosphere. These gases trap heat in the atmosphere, leading to a gradual increase in global average temperatures, known as global warming. This phenomenon has serious impacts on our environment and ecosystems, including extreme weather events and rising sea levels.

Answer:

I hope this helps you

.......................................

b)

Concentartion of hydroxide ion:

pOH = 14 - 4.74

pOH = 9.26

[OH-] = 10^-9.26 = 5.5x10^-10

Therefore: The solubility of Al(OH)3 in this buffer is then calculated from its solubility product expressions:

The molar solubility in buffer = [Al^3+] = Ksp/[OH-] = 2x10^-32

2x10^-32 = Al (5.5x10^-10)^3

Al = 1.2x10^-4 M

Answer:

42.75 grams of SiCl2Br2 must be weighed out

Explanation:

Here is the complete question:

An experiment requires that enough SiCl2Br2 be used to yield 13.2g of bromine . How much SiCl2Br2 must be weighed out?

Explanation:

First, we will determine the Molar mass of SiCl2Br2,

Si = 28.08, Cl = 35.45, Br = 79.90

Molar mass of SiCl2Br2 = 28.08 + 35.45(2) + 79.90(2)

= 258.78

Hence, the molar mass of SiCl2Br2 is 258.78 g/mol

If 79.90 grams of bromine is present in 258.78 grams of SiCl2Br2

Then, 13.2 grams of bromine will be present in \(x\) grams of SiCl2Br2

\(x\) = (13.2× 258.78) / 79.90

\(x\) = 42.75 grams

Hence, 42.75 grams of SiCl2Br2 must be weighed out.