Definitions
Types of Chemical Reactions
Calculations
100

The mass (in grams) of one mole of an element or compound.

Molar mass

100

2Fe+3Cl2 -> 2FeCl3

Combination

100

Balance the following equation:

Ba + H2O -> Ba(OH)2 + H2

Ba + 2H2O -> Ba(OH)2 + H2

200

SI unit for measuring the number of representative particles

Mole

200

Ca + 2H2O -> Ca(OH)2 +H2

Single replacement

200

What is the percent composition of LiO, is a sample of LiO with a mass of 41.9 g contains 33.1 g Li and 8.8 g O?

Li: 79%

O: 21%

300

The most reduced form of a molecular formula.

Empirical formula

300

2C3H7OH + 9O2 -> 6CO2 + 8H2O

Combustion

300

What is the percent by mass of carbon in aspirin, C9H8O4?

60%

400

A collection of formulas and symbols that describe a chemical reaction.

Chemical equation

400

2HI -> H2 + I2

Decomposition

400

Balance the following equation:

H3PO4 + NaOH -> Na3PO4 + H2O

H3PO4 + 3NaOH -> Na3PO4 + 3H2O

500

Which of the following would NOT be used in a chemical equation: g, l, aq, s

g

500

3H2SO4 + 2Al(OH)3 -> Al2(SO4) + 6H2O

Double replacement

500

How many representative particles are in 2.00 g of a molecular compound with a molar mass of 237 g?

5.08 x 1021 R.P.

M
e
n
u