Chemical Reactions Review

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

Front

What is a physical change?

Back

A physical change is a process that alters the form or appearance of a substance but does not change its chemical composition.

Front

Is spoiling food a physical or chemical change?

Back

Chemical change.

Front

Is burning wood a chemical or physical change?

Back

Chemical change.

Front

Is glass breaking a chemical or physical change?

Back

Physical change.

Front

Is mowing the lawn a physical or chemical change?

Back

Physical change.

Front

Is melting ice a chemical or physical change?

Back

Physical change.

Front

What are some examples of chemical changes?

Back

Examples include rusting of iron, burning of wood, and digestion of food.

Front

What are some examples of physical changes?

Back

Examples include melting ice, boiling water, and breaking glass.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.