Chemical Magic Unit Review

You can make a solution more concentrated by adding __________.

• solute
• solvent
• water

Tags

NGSS.HS-PS1-5

What will allow more solute to be dissolved into a solvent?

• adding more solute

• nothing

• cooling the solution

• heating the solution

Tags

NGSS.MS-PS1-4

Which of the following is an example of COHESION?

• water sticking to water

• water sticking to glass

• oil sticking to plastic

• hydrogen sticking to oxygen

Which substance is least soluble at 0 ºC?

• KI

• KNO₃

• KClO₃

• Ce₂(SO₄)₃

Tags

NGSS.MS-PS1-2

Which part of a water molecule has a partial negative charge?

• The Hydrogen

• The Oxygen

• The Left

• The Right

Which part of a water molecule has a partial positive charge?

• The Hydrogen

• The Oxygen

• The Top

• The Bottom

What are the bonds called between a slightly positive hydrogen in a polar molecule and a negatively charged atom?

• Hydrogen Bonds

• Water Bonds

• Covalent Bonds

• Bail Bonds

What do you call a solution that contains less than the maximum amount of solute that is capable of being dissolved?

• unsaturated solution

• saturated solution

• supersaturated solution

• insoluble solution

Which of the following best describes a supersaturated solution?

• a solution that contains the maximum amount of solute that is capable of being dissolved

• a solution that contains less than the maximum amount of solute that is capable of being dissolved.

• a solution that contains more than the maximum amount of solute that is capable of being dissolved.

• none of the above

When 42 grams of potassium chloride, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

Tags

NGSS.MS-PS1-4