Chemistry - Semester 1 Final Exam Review

Front

What is the ionic formula of the compound formed between beryllium and fluorine?

Back

BeF2

Front

What does an atom lose when it undergoes alpha decay?

Back

2 protons and 2 neutrons

Front

Protons have a _____ charge while electrons have a _____ charge.

Back

positive; negative

Front

Metals are found on which side of the stairs in the periodic table?

Back

left

Front

What is the name of the compound PI3?

Back

phosphorous triiodide

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 an ionic bond and a covalent bond?

Back

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

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

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.