Unit 2B.1 Test Practice

Front

What is an anion?

Back

An anion is a negatively charged ion that is formed when an atom gains one or more electrons.

Front

Which element forms an anion?

Back

Sulfur forms an anion.

Front

What is the name of the compound MgBr2?

Back

The name of the compound MgBr2 is magnesium bromide.

Front

What type of element is oxygen?

Back

Oxygen is a non-metal.

Front

What is the correct name for NaClO3?

Back

The correct name for NaClO3 is sodium chlorate.

Front

What is the formula for ammonium sulfide?

Back

The formula for ammonium sulfide is (NH4)2S.

Front

What is a cation?

Back

A cation is a positively charged ion that is formed when an atom loses one or more electrons.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons between metals and non-metals, while covalent compounds are formed by the sharing of electrons between non-metals.

Front

What is the significance of the subscript in a chemical formula?

Back

The subscript indicates the number of atoms of the element in the compound.

Front

What is the charge of a sulfate ion (SO4)?

Back

The sulfate ion (SO4) has a charge of -2.