Chem Solutions Test Review

If a solution has the ability to dissolve more salt, it is classified as _______________.

• supersaturated
• saturated
• unsaturated
• monosaturated

What will happen to the concentration if more solvent is added to the solution?

• the concentration will increase
• the concentration will decrease
• the concentration will remain the same

A student takes the moles of solute and divides by the liters of solution. What is she solving for?

• percent by volume

• percent by mass

• Molarity

• molar mass

A student used this dimensional analysis setup to answer a question. Where did she get 0.100 moles over 1 Liter?

• from the atomic masses on the periodic table

• This number is always 0.100 no matter the question

• from the Molarity (M) given in the problem

• from the percent by volume given in the problem

Tags

NGSS.HS-PS1-5

A student uses this dimensional analysis setup to answer a question.  Where did she find the 85 grams that is above 1 mole?

• from the atomic masses on the periodic table
• you always use 85 grams over 1 mole
• it is the number found with "M"
• from the balanced chemical equation

Carbon dioxide dissolved in Coke is an example of which solute-solvent combination?

• gas-air

• liquid-gas

• gas-liquid

• liquid-air

The "like dissolves like" rule is the reason why water cannot dissolve

• salt
• sugar
• vinegar
• oil

How does a solution become supersaturated?

• dissolve lots of solute in it.

• dissolve a little solute in it.

• dissolve more solute than you should be able to at a given temperature. heat it up to dissolve the solute, then cool it down.

• dissolve a super amount of solvent in it.

Tags

NGSS.HS-PS1-5

After stirring a solution and solid sugar remains on the bottom, the solution is

• Supersaturated

• Saturated

• Unsaturated

• Unstable

The solubility of gases tend to __________ when you increase temperature.

• Increase

• Decrease

• Stays the same

• Dissolve