Pure Substances and Mixtures

Front

A _______________ is made up of different kinds of atoms that are chemically combined.

Back

compound

Front

A substance with definite physical and chemical properties. It is also made up of just one type of particle.

Back

pure substance

Front

Which of the following is not a pure substance? Options: air, water, sugar, carbon dioxide

Back

air

Front

Metals, nonmetals and metalloids are classifications of _______________.

Back

elements

Front

Pure water has a pH of 7. What does it suggest?

Back

Pure water is neutral.

Front

This blue litmus paper turns to red when soaked in that substance. What does it mean?

Back

The substance is an acid.

Front

Red litmus paper turns blue in the presence of ______________.

Back

a base

Front

Compounds that contain carbon and hydrogen are classified as ______________ compounds.

Back

organic

Front

A combination of two or more substances that are combined physically but not chemically are called ________________.

Back

mixtures

Front

A ____________________ has the same composition throughout.

Back

solution, homogeneous mixture