Front

What is the definition of a chemical change?

Back

A chemical change is a process where one or more substances are transformed into new substances with different properties.

Front

What is an example of a chemical change?

Back

Baking a cake is an example of a chemical change.

Front

What is the definition of 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 frying an egg a physical or chemical change?

Back

Frying an egg is a chemical change.

Front

What happens during rusting?

Back

Rusting is a chemical change where iron reacts with oxygen and moisture to form iron oxide (rust).

Front

Is a rusting bicycle a chemical or physical change?

Back

A rusting bicycle is a chemical change.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What are the signs of a chemical change?

Back

Signs of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Front

What is the difference between a physical and chemical change?

Back

A physical change affects the form of a substance, while a chemical change results in the formation of new substances.

Front

Can a chemical change be reversed?

Back

Most chemical changes are not easily reversible, unlike physical changes.