Physical Science Unit 2 Review

Front

What is a supersaturated solution?

Back

A supersaturated solution is a solution that contains more solute than can normally dissolve at a given temperature. It is unstable and can precipitate excess solute if disturbed.

Front

How many grams of KBr dissolve in water at 60°C?

Back

82 g of KBr will dissolve in water at 60°C.

Tags

NGSS.MS-PS1-4

Front

At what temperature will 100g of NaClO3 dissolve?

Back

100g of NaClO3 will dissolve at 20°C.

Tags

NGSS.MS-PS1-4

Front

What occurs during a phase change?

Back

During a phase change, a substance transitions from one state of matter to another, such as from solid to liquid or liquid to gas, often involving energy changes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Why is water (H2O) not found in the periodic table?

Back

Water is not found in the periodic table because it is a compound, not an element.

Front

Define a saturated solution.

Back

A saturated solution is a solution that has dissolved the maximum amount of solute at a given temperature.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance that is dissolved in a solution, while a solvent is the substance that does the dissolving.

Front

What is the boiling point of water?

Back

The boiling point of water is 100°C at standard atmospheric pressure.

Tags

NGSS.MS-PS1-4

Front

What happens to the solubility of most solids as temperature increases?

Back

The solubility of most solids increases as temperature increases.

Tags

NGSS.MS-PS1-4

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in fixed proportions.

Tags

NGSS.MS-PS1-1