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sammy [17]
3 years ago
8

Which of the following statements about the formation of a solution is true? A. An ionic compound cannot dissolve when a molecul

ar compound acts as the solvent.. B. Dissolution is a chemical change.. C. Dissolution is associated with heat change.. D. Water is a good solvent for C6H6.
Chemistry
1 answer:
Assoli18 [71]3 years ago
4 0
C. Dissolution is associated with heat change.
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What organisms is this a whale shark eats algae
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Whale shark is a marine mammal and it's food is a marine decomposer
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What property of water molecules allows water to dissolve many substances
hodyreva [135]

Answer:

Its high polarity

Explanation:

Solvent is the that part of solution which is present in large proportion and have ability to dissolve the solute. In simplest form it is something in which other substance get dissolve. The most widely used solvent is water, other examples are toluene, acetone, ethanol, chloroform etc.

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Water create electrostatic interaction with other polar molecules. The negative end of water attract the positive end of polar molecules and positive end of water attract negative end of polar substance and in this way polar substance get dissolve in it.

Example:

when we stir the sodium chloride into water the cation Na⁺ ions are surrounded by the negative end of water i.e oxygen and anion Cl⁻ is surrounded by the positive end of water i.e hydrogen and in this way all salt is get dissolved.

5 0
3 years ago
Indicate the changes (increases, decreases, does not change) in its volume when the pressure undergoes the following changes at
Inga [223]

The question is missing information. Here is the complete question.

A gas at a pressure of 2.0 atm is in a closed container. Indicate the changes (if any) in its volume when the pressure undergoes the following changes at constant temperature and constant amount of gas. Match the words in the left with the column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

1. The pressure increases to 6.0 atm. The volume ________

2. The pressure drops to 0.40 atm. The volume _________

3. The pressure remains at 2.0 atm. The volume _________

Answer: 1. Decreases

2. Increases

3. Does not change

Explanation: According to the Ideal Gas Law, <u>Pressure</u>, <u>Volume</u> and <u>Temperature</u> of an ideal gas is related, as the following: PV = nRT.

In this case, since temperature (T) and amount of gas (n) are constant, the <em><u>Boyle's</u></em> <em><u>Law</u></em> can be used.

The law states that the volume of a given gas, under the conditios of temperature and amount of it are constant, is inversely proportional to the applied pressure: P₁.V₁ = P₂.V₂

  • For case 1.)

Initial P (P₁) = 2

Initial V (V₁) = V

Final P (P₂) = 6

P₁.V₁ = P₂.V₂

2.V = 6.V₂

V₂ = 1/3V

When the pressure increases to 6 atm, volume <em><u>decreases</u></em> by 1/3.

  • For case 2.)

P₁ = 2

V₁ = V

P₂ = 0.4

2.V = 0.4V₂

V₂ = 5V

When pressure drops to 0.4 atm, volume <em><u>increases</u></em> by 5.

  • For case 3.)

Since there are no change in the pressure, the volume is the same from the beginning, so <em><u>does not change</u></em>.

8 0
3 years ago
What is the complete ground state electron configuration for the zinc atom?
ahrayia [7]

Answer:

2,8,8,8,4

zinc

8 0
3 years ago
Read 2 more answers
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