Unit #3 Flashcard #1

Front

What is a chemical property?

Back

A characteristic of a substance that becomes evident during a chemical reaction; for example, flammability.

Front

How can a piece of paper undergo a chemical change?

Back

By burning the paper with fire.

Front

What type of property is reactivity (e.g., bubbling, fizzing)?

Back

Chemical property.

Front

What is an example of a physical change?

Back

Ice melting.

Front

What happens to a copper penny after a few years?

Back

It undergoes a chemical change and turns greenish.

Front

Define a physical change.

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not.

Front

What are some indicators of a chemical change?

Back

Color change, temperature change, gas production (bubbling or fizzing), and formation of a precipitate.

Front

What is flammability?

Back

The ability of a substance to catch fire and burn.

Front

What is an example of a chemical change in everyday life?

Back

Rust forming on iron.