Chemistry Exam #2 Review

Front

What is a particle with no charge?

Back

Neutron

Front

What is a negatively charged particle?

Back

Electron

Front

What is the value representing the number of protons in an element?

Back

Atomic Number

Front

How many electrons can the first energy level (s level) hold?

Back

2

Front

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 1.00 atm, what is the new pressure?

Back

0.78 atm

Front

What is the positively charged particle in an atom?

Back

Proton

Front

What is the mass number of an element?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the principle behind the conservation of mass in chemical reactions?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

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.