Properties and Classification of Matter

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the two main classifications of matter?

Back

Matter can be classified into pure substances and mixtures.

Front

Define an element.

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is the difference between a compound and a mixture?

Back

Compounds have a fixed composition, while mixtures do not.

Front

What is a chemical change?

Back

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

Front

What is a physical change?

Back

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

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What happens to an atom when it gains an electron?

Back

When an atom gains an electron, it becomes negatively charged.