Element, Compound, Mixture Review

Front

What type of change is required to separate salt water?

Back

Physical change.

Front

What does the formula H+H represent?

Back

An element.

Front

What type of substance is the atmosphere?

Back

A mixture.

Front

Can oxygen be broken down into simpler substances?

Back

No.

Front

Which of the following are elements: H2O, MgCl2, H2O, KF, Ne, KCl, Ag, Au, K, Cl, N?

Back

K, Cl, N.

Front

Define an element.

Back

A pure substance that cannot be broken down into simpler substances.

Front

Define a compound.

Back

A substance formed when two or more elements are chemically bonded together.

Front

Define a mixture.

Back

A combination of two or more substances that are not chemically bonded.

Front

What is an example of a physical change?

Back

Dissolving salt in water.

Front

What is an example of a chemical change?

Back

Burning wood.