Chemistry Fall Final Exam Review

Front

What is SO₄²⁻?

Back

Sulfate

Front

What is the electron configuration for Zinc?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Front

Why do some substances float on water?

Back

They are less dense than water.

Front

An atom becomes _________ when it gains electrons.

Back

Negative

Front

What do these isotopes of carbon all have in common?

Back

Atomic number and electrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

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 pH scale?

Back

A scale that measures how acidic or basic a solution is, ranging from 0 to 14.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.