8.P.1.1 & 8.P.1.3 Practice

Front

What is an element?

Back

A substance that is composed of only one type of atom.

Front

What is a precipitate in a chemical reaction?

Back

A solid that forms and settles out of a liquid mixture.

Front

What do calcium and magnesium have in common on the periodic table?

Back

They are both reactive metals.

Front

Why are elements 57 to 102 arranged apart from the rest of the periodic table?

Back

They all have unique properties that set them apart.

Front

How can you determine the identity of an unknown element?

Back

Calculate the density of the block.

Front

What is a mixture?

Back

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

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their properties and atomic structure.

Front

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

Back

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

Front

What is malleability?

Back

The ability of a substance to be hammered or pressed into thin sheets.