Chemistry Review

Beryllium has how many protons?

• 4
• 9.0122
• 2
• 13.0122

All matter is made of 

• energy 
• atoms 
• air
• chemistry

What does the nucleus consist of?

• Protons + Electrons
• Neutrons + Electrons
• Atoms
• Protons + Neutrons

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only
• Electrons only
• Protons and Neutrons
• Protons and Electrons

How many Elements are in the compound C₂H₈O ?

• 2
• 1
• 3
• 0

How many total atoms are in the compound C₂H₈O ?

• 11
• 2
• 8
• 1

How many Oxygen atoms are in Al₂(SO₄)₃?

• 4

• 12

• 7

• 24

Evidence of a physical change.

• New substance
• Shape Change
• Light produced
• Gas released.

Is sour milk a physical or chemical change?

• Physical
• Chemical