Friday Chemistry Midterm Exam Review

Front

What is the number of neutrons in the isotope of lithium with an atomic mass of 8?

Back

5 neutrons.

Front

What is the chemical name for AlBr3?

Back

Aluminum bromide.

Front

What condition must be true for a chemical reaction to produce a precipitate?

Back

At least one product is insoluble in water.

Front

What is formed when an atom loses an electron?

Back

A cation.

Front

How do you name the compound SCl6 using nomenclature rules?

Back

Sulfur hexachloride.

Front

What is the charge of a cation?

Back

Positive charge.

Front

What is the charge of an anion?

Back

Negative charge.

Front

What is a precipitate in a chemical reaction?

Back

An insoluble solid that forms when two solutions are mixed.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the octet rule in chemistry?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.