Chemistry Final Exam Practice Quiz

What has happened to a substance if it starts at point B and goes to point C?

• Nothing

• It melted

• It evaporated

• It got warmer

What is it called when a solid becomes a gas?

• Melting

• Freezing

• Sublimation

• Deposition

What is the mass of the Chlorine gas?

2NaCl + F2 ➜ 2NaF + Cl2

5.4g + 3.2g = 4.9g + ____g

• 5.2

• 8.6

• 3.7

• 2.9

What would the freezing point of this substance be?

• 0^o

• 70^o

• 140^o

• 97^o

In what state of matter are the atoms moving the slowest?

• Solid

• Liquid

• Gas

• Plasma

A magician changes a gas into a liquid with out changing its temp. How did he do this?

• By dissolving something into the liquid.

• He learned to do it at Hogwarts

• By increasing the atmospheric pressure

• By adding an acid

The molar volume of a gas at STP occupies _____________.

• 22.4 L

• 0˚C

• 1 kiloPascal

• 12 grams

Which of the following statements is NOT true about what happens in all chemical reactions?

• The ways in which atoms are joined together change

• New atoms are formed as products

• The starting substances are called reactants

• The bonds of reactants are broken and new bonds of products are formed

What are the coefficients that will balance the skeleton equation below?

AlCl₃ + NaOH → Al(OH)₃ + NaCl

• 1,3,1,3

• 3,1,3,1

• 1,1,1,3

• 1,3,3,1

How many moles of aluminum are needed to react completely with 1.2 mol of FeO?

2Al(s) + 3FeO(s) → 3Fe(s) + Al₂O₃(s)

• 1.2 mol

• 0.8 mol

• 1.6 mol

• 2.4 mol