ChemistryChapter 12 Review Game

Balancing Balancing Chemical Chemical EquationsEquations

Stoich #1 (easy)

Stoich #2 (more

difficult)% Yield% Yield

1 point 1 point 1 point 1 point

2 points 2 points 2 points 2 points

3 points 3 points 3 points 3 points

4 points 4 points 4 points 4 points

5 points 5 points 5 points 5 points

Calcium carbonate reacts with phosphoric acid to

produce calcium phosphate, carbon dioxide

and water.

1 point Check

What is…3 CaCO3 + 2 H3PO4 Ca3(PO4)2 + 3 CO2 + 3

H2O?

1 point Back to Category Slide

Iron (III) sulfide reacts with oxygen to form iron (III) oxide and

sulfur dioxide.

2 points Check

What is…4 FeS2 + 11 O2 2 Fe2O3

+ 8 SO2?

2 points Back to Category Slide

Ammonium nitrate decomposes to

nitrogen, water and oxygen.

3 points Check

What is…2 NH4NO3 2 N2 + 4 H2O +

O2?

3 points Back to Category Slide

Manganese oxide reacts with potassium hydroxide,

oxygen and chlorine to form potassium

permanganate, potassium chloride and water.

4 points Check

What is …2 MnO2 + 4 KOH + O2 + Cl2 2 KMnO4 + 2 KCl

+ 2 H2O?

4 points Back to Category Slide

Nitric acid and zinc react to form zinc nitrate,

ammonium nitrate and water.

5 points Check

5 points Back to Category Slide

What is…4 Zn + 10 HNO3 4

Zn(NO3)2 + NH4NO3 + 3 H2O?

This allows you to convert from substance

A to substance B.

1 point Check

What is mole to mole ratio?

1 point Back to Category Slide

N2 + 3 H2 2 NH3

The number of moles of H2 I started with if I have 4.8 mol of ammonia

2 points Check

What is 7.2 mol of H2?

2 points Back to Category Slide

N2 + 3 H2 2 NH3

The number of H atoms in ammonia if I have

28.3 grams of H2.

3 points Check

What is 1.70 x 1025 H atoms?

3 points Back to Category Slide

N2 + 3 H2 2 NH3

23.9 g of ammonia are produced. The volume of

nitrogen gas (assume STP).

4 points Check

What is 15.7 liters of N2?

4 points Back to Category Slide

N2 + 3 H2 2 NH3

I have 140,000 H atoms. The number of ammonia molecules I can produce

with excess nitrogen.5 points Check

What is 47,000 ammonia molecules?

5 points Back to Category Slide

Use the following equation for #’s 2-5

2 C2H2 + 5 O2 4 CO2 + 2 H2O

1 point Check

Use the following equation for #’s 2-5

2 C2H2 + 5 O2 4 CO2 + 2 H2O

1 point Back to Category Slide

2.0 g of acetylene react with 6.0 g of oxygen.

This is my limiting reactant.

2 points Check

What is oxygen?

2 points Back to Category Slide

The number of grams of water that are produced when 2.0 g of C2H2 react

with 6.0 g of O2.

3 points Check

3 points Back to Category Slide

What is 1.4 grams of water?

The number of acetylene molecules we started with if we produced

28.7 g of CO2.

4 points Check

4 points Back to Category Slide

What is 1.96 x 1023

molecules of C2H2?

1,500 mL of acetylene react with excess

oxygen. The number of liters of carbon dioxide

that are produced.5 points Check

What is 3.0 liters of carbon dioxide?

5 points Back to Category Slide

The formula for % yield.

1 point Check

What is…(Actual / Theoretical) x

100?

1 point Back to Category Slide

If 15.0 g of nitrogen reacts with 15.0 g of hydgrogen,

10.5 g of ammonia is produced. The percent yield of this reaction.

2 points Check

What is 57.7%?

2 points Back to Category Slide

Three reasons % yield can’t be more than

100%.

3 points Check

What is impure reactants, competing side reactions, and

human error?

3 points Back to Category Slide

The % yield when a test yields 12.3 mg of

product A. According to the book, it should have

yielded 0.133 dg.4 points Check

What is 92.5%?

4 points Back to Category Slide

The amount of product that needs to be made in a lab with a 95.5% yield.

Assume a theoretical yield of 23.9 grams.

5 points Check

What is 22.8 grams? (actual)

5 points Back to Category Slide