will favor dissolution and
will favor crystallization in a saturated solution of table sugar.

a. cooling, heating
b. heating, cooling

C. evaporation, heating
d. cooling, evaporation

The question is Given:Gas×Temperature×Pressure

Gas=1400ml

Temperature=20.00K

Pressure=101.3kpa

140ml×20.00K×101.3 K Pa

total =6,00.00

and when the volume of temperature changed to 40.00 K and the pressure is changed to 50.65 kPa.

Solution will 40.00 K× 50.65 kPa

total of the changes is 200.

Answer:

compared to sodium, silicon has a higher ionization energy meaning it takes more energy to remove electrons.

Explanation:

hope this helps

can u please give me and Brainlist

Answer:

2000pound

Explanation:

Manganese metal is produced from the manganese(III) oxide, Mn2O3, which is found in manganite, a manganese ore. The manganese is reduced from its +3 oxidation state in Mn2O3 to the zero oxidation state of the uncharged metal by reacting the Mn2O3 with a reducing agent such as aluminum or carbon. How many pounds of manganese are in 1.261 tons of Mn2O3? (1 ton = 2000 pounds)

About 40 different substances called organophosphorus compounds are registered in the United States as insecticides. They are considered less damaging to the environment than some other insecticides because they breakdown relatively rapidly in the environment. The first of these organophosphorus insecticides to be produced was tetraethyl pyrophosphate, TEPP, which is 33.11% carbon, 6.95% hydrogen, 38.59% oxygen, and 21.35% phosphorus. It has a molecular mass of 290.190.

A quantity can be converted from one unit of measurement to another while maintaining its value. There are 2522 pounds of manganese in 1.261 tons of [tex]\rm Mn_2O_3[/tex].

It is a fundamental idea that is applied in many different disciplines such as science, engineering, math and daily life. To complete a conversion, it is necessary to know the conversion factor – the numerical relationship between the two units of measurement. With the help of this factor, you are able to convert units while keeping the value constant.

To convert tons to pounds we need to know that 1 ton is equal to 2000 pounds.

Given that you have 1.261 tons of [tex]\rm Mn_2O_3[/tex], we can calculate the number of pounds as follows:

Number of pounds = 1.261 tons * 2000 pounds/ton

Number of pounds = 2522 pounds

Therefore, there are 2522 pounds of manganese in 1.261 tons of [tex]\rm Mn_2O_3[/tex].

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Answer:

= 9.6125M

Explanation:

data:

volume = 800ml

              800/ 1000 = 0.8dm^3

molar mass of NaCl = 23 + 35.5

                                  = 58.5g

mass of NaCl = 450 g

moles= ?

molarity = ?

solution:

no. of moles = [tex]\frac{given mass}{molar mass}[/tex]

                      = 450 / 58.5

                     = 7.69 moles

now, molarity = [tex]\frac{moles}{volume in dm^3}[/tex]

                       = 7.69 / 0.8

         molarity= 9.6125 M

Answer:

25 080 j    ( Rounded to 25100 j)

Explanation:

 FROM THE EQUATION

??  = 4.18  * 2000 * (3)  = 25 080 j

The following compounds create solutions that are listed below

A solution is a homogeneous mixture of one or more solutes dissolved in a solvent.

solvent: the substance in which a solute dissolves to produce a homogeneous mixture

solute: the substance that dissolves in a solvent to produce a homogeneous mixture

1. Nal and H₂O

It will form an ionic solution .

2. KBr and CH4

It will not form a solution

3. CO₂ and CF₄

It will not form a solution

4. LiCI and CCl₄

It will not form a solution

5. NH₃ and H₂O

It will also form a solution and liberate ions of ammonium

6.CO₂ and H₂O

It will form a solution named as carbonic acid

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Answer:

answer in picture

Explanation:

The balanced chemical equation will be Ca + MgCl2 → CaCl2 + Mg.

An equation that has the same quantity of atoms on both sides of the arrow would be said to represent a balanced chemical reaction.

The given equation is Ca + MgCl2 →

It is known that when Ca is reacted with magnesium chloride ( MgCl2) then it will form calcium chloride (CaCl2 ) and magnesium.

Ca + MgCl2 → CaCl2 + Mg.

It can be seen that, calcium has one atom in the reactant side and one atom in product side. On the other hand, chlorine has one atom in reactant side as well as product side.

Hence, the reaction will be balanced.

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Answer: I can’t explain how it impacts ionic bonding but I can tell you what ionization energy is.

Explanation:

ionization energy, also called ionization potential, in chemistry and physics, the amount of energy required to remove an electron from an isolated atom or molecule.

Answer:

0.0734 grams LiOH

Explanation:

The molarity formula looks like this:

Molarity (M) = moles / volume (L)

You are given the molarity and volume (in mL). Therefore, you can plug these values into the equation and solve for moles (after you convert from mL to L).

25 mL / 1,000 = 0.025 L

0.125 M = moles / 0.025 L

(0.125 M) x (0.025 L) = moles

0.003125 = moles

After using the molarity formula, we know that 0.003125 moles LiOH are needed to satisfy these conditions. Now, we can convert this to grams using the molar mass of LiOH. This can be determined using the values from the periodic table. Remember to write your conversion in a way that allows for the units to cancel out.

Molar Mass (LiOH) = 6.941 g/mol + 16.00 g/mol + 1.008 g/mol

Molar Mass (LiOH) = 23.499 g/mol

0.003125 moles           23.499 g
------------------------   x   -------------------  =  0.0734 grams LiOH
                                        1 mole

0.074 grams of lithium hydroxide are needed to make 25 ml of 0.125 M solution, according to the concept of molar concentration.

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.

Here , in the problem mass is to be determined, hence the formula used is the first one mentioned.

Substituting values in the formula,mass=molar concentration×molar mass×volume in liters

∴0.125×23.95×0.025=0.074 g.

Hence, 0.074 g of lithium hydroxide are required to prepare 25 ml of 0.125 M solution.

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Answer: Molecules gain or lose energy during any temperature change, not just phase changes.

Explanation:

If you think of a  heating or cooling curve, even when there isn't a phase change, the kinetic energy of the particles is still changing.

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C. the forward reaction rate is equal to the reverse reaction rate

Chemical equilibrium is dynamic in nature and it can be attained only if the system is a closed one. At equilibrium the forward reaction rate is equal to the reverse reaction rate. The correct option is C.

The state of a system in which the measurable properties of the system do not undergo any further noticeable change under a particular set of conditions is called the state of equilibrium. The properties like pressure, concentration, etc. is constant at equilibrium and remain unchanged thereafter.

An equilibrium can be attained from either direction, i.e., from the direction of the reactants as well as from the direction of the products. At equilibrium the rate of forward reaction is equal to that of the backward direction.

In forward reaction, the reactants are converted into products and in backward reaction, the products are changed into the reactants.

Thus the correct option is C.

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Answer:

Rubber is an insulator.

Remaining three are metals and hence conductors.

Answer:

KCl+H2O

Na3PO+H2O

CaCO3+H2O

The answer is CH₃-CH₂-CH₂-CH=CH₂ , Option C correctly represents the structural formula for pentene .

Any hydrocarbon containing one or more double bonds.

Alkenes are generally colorless non-polar compounds, somewhat similar to alkanes but more reactive.

The first few members of the series are gases or liquids at room temperature.

Pentenes are alkenes with the chemical formula C₅H₁₀.

Each contains one double bond within its molecular structure.

CH₃-CH₂-CH₂-CH=CH₂ , Option C correctly represents the structural formula for pentene .

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Answer:

The answer is Erosion, Weathering,

Explanation:

These all seem to be correct but i know for a fact those two are correct.

Answer: 0.02595 is your answer I looked it up

Answer:

.03

Explanation:

Answer:

+ 47.68 Liter change in volume to final volume 129.68 L

Explanation:

P1V1/T1 = P2V2/T2     RE-ARRANGE TO:

P1V1/T1  * T2/P2  = V2         (T must be in Kelvin)

1.9 * 82 / (273.15 + 32.5)   *  (273.15-15.4)/ (770/760) = 129.68 L

129.68 - 82=47.68 L  change  

Ammonium lauryl sulfate has a molar mass of 283.43 g/mol.

Ammonium dodecyl sulfate is another name for it. It's in the shampoos we use on our hair. Both polar and non-polar solvents can dissolve it. It can irritate the skin at times.

Thus, the ammonium lauryl sulfate molar mass is 283.43 g/mol.

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Convert temperature to Kelvin

Convert vol to L

Apply Charles law

Answer:

[tex]V_{1} = \text{400.0 mL}[/tex]

[tex]T_{1} = 225.0^{\circ}\text{C + 273.15 = 498.15 K}[/tex]

[tex]T_{2} = 127.0^{\circ}\text{C + 273.15 = 400.15 K}[/tex]

[tex]V_{2}[/tex]

[tex]\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}[/tex]

[tex]V_{2} = V_{1} \times \dfrac{T_{2}}{T_{1}}[/tex]

[tex]V_{2} = \text{400.0 mL} \times \dfrac{\text{400.15 K}}{\text{498.15 K}}[/tex]

[tex]\boxed{V_{2} = \text{321.3 mL}}[/tex]

Therefore, the volume of the gas at 127.0°C is 321.3 mL

[tex]\begin{gathered}\\\end{gathered}[/tex]

Answer:

increase

Explanation:

The Ideal Gas Equation

The volume of a gas is directly proportional to the number of moles it contains. Hence, if the number of particles is increased, then the volume inside the container will increase

Molar mass is the summation of the atomic mass of the individual atoms. The molar mass of KBr•7H₂O is 244.99.

Atomic mass or weight is the number of protons and neutrons in the atom of the individual element. The atomic masses are used to calculate the molar mass of the compound.

The compound KBr•7H₂O: 1 K + 1 Br + 14 H + 7O

Inserting the atomic masses of the individual atoms as:

= 1 (39.09) + 1 (79.90) + 14 (1.00) + 7(16)

= 39.09 + 79.90 + 14.00 + 112

= 244.99

Therefore, 244.99 is the molar mass of KBr•7H₂O.

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Answer:

B. Single replacement.

Explanation:

The A in compound AB was replaced by C to make CB. Since there was only one instance of replacement, it is a single replacement reaction.

The final temperature of the sample of gas is 689.65 Kelvin.

Relation between the temperature and pressure will be represented by the ideal gas equation PV = nRT, and for this question required equation is:

P₁/T₁ = P₂/T₂, where
P₁ & T₁ are the pressure and temperature of the initial sample.

P₂ & T₂ are the pressure and temperature of the final sample.

Pressure is in mmHg and on putting values from the question on the above equation, we get

T₂ = (810)(390.8) / (760) = 416.5 degree C = 689.65K

Hence required temperature of the sample is 689.65K.

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Answer:

See below

Explanation:

The large bar magnet is positioned with S on the Left

  the small magnet will position itself similar this with N on the right   S on the left   (opposites attract)

Answer:

Structure 1:
The longest chain is made up of 4 carbons (butane). There is a 1-carbon branch (methyl). The lowest possible position of the branch is on the 2nd carbon. This makes the alkane: 2-methylbutane.

Structure 2:

The longest chain is made up of 7 carbons (heptane). There is a 2-carbon branch (ethyl). The lowest possible position of the branch is on the 4th carbon. This makes the alkane: 4-ethylheptane.

Structure 3:
The longest chain is made up of 4 carbons (butane). There are 2, 1-carbon branches (dimethyl). The lowest possible position of both branches is on the 2nd carbon. This makes the alkane: 2,2-dimethylbutane.

Structure 4:
The longest chain is made up of 3 carbons (propane). There are 2, 1-carbon branches (dimethyl). The lowest possible position of both branches is on the 2nd carbon. This makes the alkane: 2,2-dimethylpropane.

Structure 5:
The longest chain is made up of 6 carbons (hexane). There is a 1-carbon branch (methyl). The lowest possible position of the branch is on the 2nd carbon. This makes the alkane: 2-methylhexane.

Structure 6:
The longest chain is made up of 3 carbons (propane). There is a 1-carbon branch (methyl). The lowest possible position of the branch is on the 2nd carbon. This makes the alkane: 2-methylpropane.

The isomers are structures 1 and 4 because they contain the same amount of carbons (5) and hydrogens (12) while assuming different structures.

So

Moles of Potassium

See molar ratio is same for K,KOH,H_2O i.e 4 .

Mass of Water

Mass of KOH

#2

Balanced already

3 mols of S form 3 mol SO_2

At STP 1mol=22.4L

Answer:

24 atm

Explanation:

From Boyle's Law :

Given values :

Solving

New volume

So apply Boyles law