What happens when a solid is dissolved into a liquid?
O Solid particles float toward the surface layer of liquid particles.
O Solid particles sink down toward the bottom layer of liquid particles.
O Solid particles become evenly dispersed among liquid particles.
O Solid particles become suspended in the middle of liquid particles.

The volume would be three times the original volume is the correct answer.

The volume would be three times the original volume because a reaction produced 3 moles of gas from 1 mole of gaseous reactants. The ratio between reactants and products are 1:3 which shows that three times increase occur in the volume between reactant and products.

So we can conclude that the volume would be three times the original volume is the correct answer.

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The mathematical equation for the ideal gas law is PV = nRT.

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

(A)

PV = nRT

The ideal gas equation is formulated as: PV = nRT. In this equation, P refers to the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas that is measured in terms of moles, R is the universal gas constant, and T is the temperature.

(B)

Where the pressure - P, is in atmospheres (atm) the volume - V, is in liters (L) the moles -n, are in moles (m) and Temperature -T is in Kelvin (K) as in all gas law calculations.

(C)

A. Boyle's law

B. Charles's law

C. Avogadro's law

D. Dalton's law

____ [tex]- P_1V_1[/tex] = [tex]P_2 V_2[/tex]

____ [tex]\frac{V}{T}[/tex] = k

____ [tex]\frac{V_1}{T_1}[/tex] = [tex]\frac{V_2}{T_2}[/tex]

____ V = kn

____ PV = k

____- P total = [tex]P_1 + P_2 + P_3 + ...[/tex]

Boyle's law [tex]- P_1V_1[/tex] = [tex]P_2 V_2[/tex]

Charles's law - [tex]\frac{V}{T}[/tex] = K

Charles's law - [tex]\frac{V_1}{T_1}[/tex] = [tex]\frac{V_2}{T_2}[/tex]

Avogadro's law- V = kn

Boyle's law - PV = k

Dalton's law - P total = [tex]P_1 + P_2 + P_3 + ...[/tex]

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Answer:

Percent Composition

1. Find the molar mass of all the elements in the compound in grams per mole.

2. Find the molecular mass of the entire compound.

3. Divide the component's molar mass by the entire molecular mass.

4. You will now have a number between 0 and 1. Multiply it by 100% to get percent composition.

During an asthma attack temperature can be decreased to increase the volume of the airway.

This law describes how a gas expands as the temperature increases; conversely, a decrease in temperature will lead to a decrease in volume.

[tex]\rm \dfrac{V'}{T'} = \dfrac{V}{T}[/tex]

which means volume is inversely proportional to temperature so the temperature can be decreased in the atmosphere to increase volume of the airway.

This means that, when you inhale cold air, it will change volume as it warms in passing through the sinuses.

As the air warms it expands to a larger volume.

Therefore during an asthma attack temperature can be decreased to increase the volume of the airway.

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Answer:

Energy can neither be created nor destroyed, but it does change its form. And not all forms of energy are usable and it gets dissipated as heat energy and sound energy. The energy that is wasted cannot be recovered.

Let's see

Answer:

Molecular solids and covalent network solids are two types of solid compounds. The key difference between molecular solid and covalent network solid is that molecular solid forms due to the action of Van der Waal forces where as covalent network solid forms due to the action of covalent chemical bonds.

hope this helps

The biological molecules that transport other substances are the proteins.

Proteins are biological macromolecules that contains nitrogen in their molecules and are the building block of a living organism.

The proteins perform the following functions:

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Answer:

The two factors that determine whether a reaction is spontaneous are:

Enthalpy: When the reaction gives off energy, then the reaction is said to be spontaneous.

Entropy: It is the measure of randomness in a system. As the randomness of the reaction increases, the spontaneous is the reaction.

That's it

Hope's It's Help

Answer:

On treatement of 2 -with hydrogen gas and lindlar catalyst, the major product obtained is cis-2butene.

Answer:

See below

Explanation:

From periodic table, find Mole Weight of the element in question

 this is the grams of the element in Avagadro's Number (6.022 x 10^23)  of atoms

   (5.50 x 10^22) / (6.022 x 10^23)  x mole weight = grams

Hi!In an Ionic bond a metal gives a valence to a cation.

Answer: 13.9

Explanation:

LiOH is a base, so the pOH is given by [tex]-\log(0.8)=0.0969[/tex].

So, since pOH + pH = 14, the pH is 14-0.0969, which is about 13.9

2.59 atm is the pressure inside the flask if 6 grams of nitrogen gas is introduced into an evacuated 2 L flask at 28 degrees celsius.

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

The computation of the pressure inside the flask is shown below;

As per the ideal gas law

we know that

P V = nRT

where

V = 2 L

T = 28 degrees celsius +273 = 301 K

m= 6 grams

R = 0.0821

Now moles of [tex]N_2[/tex] is

= 6 grams ÷ 28

= 0.21 mol

Now

P = nRT ÷ V

= (0.21 mol × 0.0821 × 301 K) ÷ 2 L

= 2.59 atm

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Answer:

2.0 M

Explanation:

molarity = (moles of solute)/(liters of solution)

molarity = 0.25/0.50 = 2.0 M

Answer:

X

Explanation:

X is the reactant and Y is the product

The properties of alkaline earth metals include

Alkaline earth metals are the metals that occupies the group two in the periodic table. They include the following:

The properties include the following:

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Answer:

Alkaline metals have valency 2, they have 2 valence electrons, their oxides are basic in nature, and they are electropositive. Alkaline metals are not found in nature alone.

Explanation:

The maximum volume of hydrogen evolved at room temperature and prressure after taking excess zinc with 0.01 mol HCl is 2.4 [tex]dm^{3}[/tex]

hence correct option is (C)

According to this law, the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.

Given Equation ;

Zn + 2HCl --> [tex]ZNCl_2[/tex] + [tex]H_2[/tex]

Given Quantities ;

Amount of Zinc = Excess

Amount of 1.0 mol/ltr HCl = 100 ml

It means, Number of moles of H = 0.1 mole

Temperature = 298 K

Pressure = 1 Atm

This is a “single state” problem, so we can solve it using the ideal gas law, PV = nRT.

therefore, using Ideal gas equation ;

PV=nRT

1 x V = 0.1 x 0.0821 x 298

volume of hydrogen gas = 2.4 litre ie, 2.4 [tex]dm^{3}[/tex]

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Answer:

A single carbon pool can often have several fluxes both adding and removing carbon simultaneously. For example, the atmosphere has inflows from decomposition (CO2 released by the breakdown of organic matter), forest fires and fossil fuel combustion and outflows from plant growth and uptake by the oceans.

Explanation:

Answer:

5.6 m which is molarith this solution

One system must have higher kinetic energy than the other system is the correct statement.

Conduction is the process by which heat is transmitted through the material of a substance when there is a difference of temperature between two bodies.

So we can conclude that One system must have higher kinetic energy than the other system is the correct statement.

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Heat flow by conduction requires that the two systems must not be touching each another.

Heat energy is a form of energy that exists due to a temperature difference between two objects.

Heat energy flows from an object at higher temperature to an object at a lower temperature.

Heat transfer by conduction involves the vibration of particles of the medium transferring heat due to contact between the two objects.

Therefore, heat flow by conduction requires that the two systems must not be touching each another.

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A population is a group of individuals of the same species living in a particular area at the same time.

The whole number of people or inhabitants in a country or region.

A population is the number of living people that live together in the same place. A city's population is the number of people living in that city. These people are called inhabitants or residents. The population includes all individuals that live in that certain area.

Hence, a group of organisms of the same species that live in an area is called a population.

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Air pollution can be reduced by conserving energy, plant more trees, using efficient energy, and clean energy resources.

The air pollution can be reduced by conserving energy, going green, using efficient home energy devices, and using clean energy resources because these actions can reduce the emission of toxic gases into the atmosphere. We should use electrical devices and vehicles instead of fossil fuels vehicles.

So we can conclude that air pollution can be reduced by conserving energy, plant more trees, using efficient energy, and clean energy resources.

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The image is attached with the answer.

Isomers are compounds which have same empirical formula , same number of atoms are present but they have difference in arrangement if the atoms.

It is given that

There are four cis, trans isomers for 2-isopropyl-5-methylcyclohexanol

the cis, trans designations of the substituents are made relative to the oh group

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but heres a way to solve it

An athlete takes a deep breath, inhaling 1.85 L of air at 21°C and 754 mm Hg.

T

How many moles of air are in the breath? How many molecules?

Gas constant, R= 8.314 J mol ¹ K-1

PV = nRT

PV

RT

h=

=

P

= 0.08206 L atm mol-1 K-1

= 62.36 L Torr mol-1 K-1 -

1 atm = 760 mm Hg = 760 Torr

754 Forr 1.85€

6236 Jerr 294K

Answer: 20 grams

Explanation:

[tex]10=\frac{\text{grams of KOH}}{200}\\\text{grams of KOH}=20[/tex]

Answer:

D. Selenium

Explanation:

If you are talking about elements with a neutral charge, i.e. just usual elements and not ions whatsoever, then we have five elements who match the criteria. They are oxygen (o) sulfur (s) selenium (se) tellurium ( T e ) polonium ( P o )

After the complete neutralization reaction occurs, excess hydroxide ion is left unreacted the hydroxide ion of the resulting solution, [OH-] is 0.02 M.

The hydroxide ion concentration is the amount in moles of hydroxide ion in a solution.

The hydroxide ion concentration is written as [OH-].

The equation of the reaction is given below:

1 mole of HBr reacts with 1 mole of KOH

Moles of HBr = 40 mL × 0.1 M = 4 mm moles

Moles of KOH = 60 mL × 0.1 M = 6 m moles

Moles of [OH-] = 6 - 4 = 2 m moles

Volume of solution = 100 mL

[tex][OH-] = \dfrac{2m\; moles}{100\; mL} = 0.02 M[/tex]

Thus, the concentration of the hydroxide ion, [OH-] is 0.02 M.

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Answer:

0.714 moles

Explanation:

whenever you see  × 10^23 molecules

its an Avogadro's number question

Avogadro's number is 6.02214076×10²³

1 mole is 6.02214076×10²³ molecules

4.3 × 10²³ molecules divided by 6.02214076×10²³ molecules per mole =

4.3 × 10²³ ÷ 6.02214076×10²³ =

0.71403179888 moles

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