Types of Reactions
Mole Conversions
Percent Composition
Empirical Formula
Balanced Chemical Equations
100

C + 2H2 → CH4

What is synthesis?

100

The amount that 2 moles of As weighs.

What is 150 g/mol?

100
The percent mass of sodium in NaCl.

What is 39%?

100

What is the empirical formula of a compound with a molecular formula of C20H42?

What is C10H21 ?

100

Balance:

Cl2 + KI → I2 + KCl

What is Cl2 + 2KI → I2 + 2KCl ?

200

2H2O → 2H2 + O2

What is decomposition?

200

The number of moles in 12 g of CH3COOH?

What is 0.2 mol?

200

Percent mas of Oxygen in H2O.

What is 89%?

200

The empirical formula of C6H12O6.

What is CH2O ?

200

Balance:

NaCl + H2SO4 → Na2SO4 + HCl

What is 2NaCl + H2SO4 → Na2SO4 + 2HCl ?

300

AgNO3 + NaCl → AgCl + NaNO3

What is double replacement?

300

You use 15 mol of zinc, you will make this many mol of copper.

Zn + CuSO4 → ZnSO4 + Cu

What is 15 mol?

300

The percent mass of sulfur in H2SO4.

What is 33%?

300

One of these is an empirical formula:

C2H6           CH5N       C6H12         C6H6

What is CH5N ?

300

Balance:

WO3 + H2 → W + H2O

What is WO3 + 3H2 → W + 3H2O ?

400

2Al + 3Cu(NO3)2 → 2Al(NO3)3 + 3Cu

What is single replacement? Or a very unfortunate prom.

400

The mass of zinc needed to produce 15 moles of copper.

Zn + CuSO4 → ZnSO4 + Cu

What is 981 g of zinc?

400

The percent mass of carbon in CH3COCH3.

What is 62%?

400

A compound has an empirical formula of CH3 and a gram formula mass of 30 g/mol. This is its molecular formula.

What is C2H6 ?

400

Balance: 

Mg + FeCl3 → Fe + MgCl2

What is 3Mg + 2FeCl32Fe + 3MgCl2 ?

500

C3H8 + 5O2 → 3CO2 + 4H2O

What is combustion?

500

The number of grams of octane needed to produce 44.8L of carbon dioxide.

C8H18 + O2 --> CO2 + H2O

What is 28.5 g of octane?

500

The percent mass of nitrogen in Al(NO3)3.

What is 20%?

500

A compound has an empirical formula of C4H9 and a gram formula mass of 114 g/mol. This is its molecular formula.

What is C8H18 ?

500

Balance:

MnO2 + KOH + O2 → K2MnO4 + H2O

What is 2MnO2 + 4KOH + O22K2MnO4 + 2H2O ?