Week 4 Quiz Solutions and Solubility

Which of the following does not increase the rate of dissolving a solid in a liquid?

• stirring the solution
• crushing up the solute
• raising the temperature of the water
• lowering the temperature of the water

Tags

NGSS.HS-PS3-4

As the pressure decreases the solubility of a gas in a liquid

• increases
• decreases

If the amount of solute present in a solution is more than the maximum than can be dissolved, the solution is

• saturated
• unsaturated
• supersaturated
• colloidal

The substance being dissolved is called the ________

• solvent

• solid

• solute

• solvate

When no more solute dissolves the solution is _________

• supersaturated

• unsaturated

• saturated

• supercalifragilisticexpialidocious

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

air is a 

• compound
• element
• heterogeneous mixture
• solution

When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.

• concentrated 
• Diluted

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams
• 75 grams
• 40 grams
• 12 grams

Tags

NGSS.HS-PS1-5

You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:

• saturated

• unsaturated

• concentrated

• warm

Tags

NGSS.MS-PS1-2