Grade 8_Comp

Front

What is the formula for density?

Back

density = mass / volume

Front

What type of change is represented by a melting ice cube?

Back

Physical Change

Front

What pH value indicates a strong base?

Back

14

Front

What substance is best for neutralizing stomach acid?

Back

A substance with a pH of 9

Front

Density is a ________ property.

Back

physical

Front

What is the definition of density?

Back

Density is the mass of an object divided by its volume.

Front

What happens to the density of a substance when it is heated?

Back

The density typically decreases as the substance expands.

Front

What is the pH range of acids?

Back

0 to 6.9

Front

What is the pH range of neutral substances?

Back

7

Front

What is an example of a chemical change?

Back

Rusting of iron.