Stoichiometry Review Jeopardy

Vocabulary

100

A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.

What is mole ratio?

200

This is the scientific name for the starting materials or "ingredients" for a chemical reactions.

Reactants

300

This is the scientific name for the materials that are produced in a chemical reaction.

Products

400

This is the official name for this number: 6.02x10²³

Hint: It is not "mole"

Avogadro's number

500

What is the gas that was in the Pringles can that caused it to explode?

Hydrogen Gas

Moles to Moles

100

CO2 + 2LiOH --> Li2CO3 + H2O How many moles of lithium hydroxide are required to react with 20 mol of CO2?

What is 40 mol LiOH?

200

6CO2 +6H2O --> C6H12O6 + 6O2 How many moles of carbon dioxide are needed to react with 3.25 mol of water in the reaction described above?

What is 3.25 mol CO2?

300

2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?

What is 1.2 mol MgO?

400

Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?

What is 4 mol NH3?

500

Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water?

What is 2.5 mol O2?

Mixed Problems

100

Mg + 2HCl --> MgCl2 + H2 How many moles of hydrogen will be produced if we start with 2 moles of hydrochloric acid?

What is 1 mole H2?

200

Mg + 2HCl --> MgCl2 + H2 

How many moles of hydrochloric acid  is needed to react with 2.50 moles of magnesium?

What is 5 moles of HCl?

300

How many moles of aluminum atoms are needed to combine with 1.58 mol of oxygen molecules to make aluminum oxide?

What is 2.1 mol Al?

400

Ammonia decomposes to produce nitrogen and hydrogen gases. How many moles of H2 can be formed by the decomposition of 0.145 moles of ammonia?

What is 0.218 mol H2?

500

Aluminum oxide reacts with iron to form Fe3O4 and Aluminum. How many moles of Fe are needed to react with 7 moles of iron.

???

Mass to Mass

100

Mg + 2HCl --> MgCl2 + H2 What mass of hydrogen is produced from the reaction of 75 g HCl (MM=36.5 g/mol) and excess Mg?

What is 2.0 g H2?

200

2KClO3 --> 2KCl + 3O2 How many grams of KCl are produced if 5.0 g of KClO3 is decomposed?

What is 3 g KCl?

300

Sodium and chlorine react to produce sodium chloride (table salt; MM=58.5 g/mol). Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine.

What is 62 g NaCl?

400

Sodium hydroxide reacts with sulfuric acid (H2SO4; MM=98.1 g/mol) to form water and sodium sulfate. How many grams of sodium sulfate (MM=124 g/mol) will be formed from 200 g NaOH (MM=40 g/mol) and an excess of sulfuric acid?

What is 355 g Na2SO4?

500

When copper (II) chloride reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed. If 15 g CuCl2 (MM=134.5 g/mol) react with 20 g NaNO3 (MM=85 g/mol), how much sodium chloride (MM = 58.5 g/mol) can be formed?

What is 13.0 g NaCl?

Trivia/Riddles

100

What is the name of the next villain in the Marvel Movies? 

Hint: the bad guy from ant man

Kang

200

What has hands but can not clap?

A clock

300

A cowboy rides into town on Friday. He stays in town for 3 days, then rides out of town on Friday.

How is this possible?

His horse is named Friday

400

This vehicle is spelled the same from the front as well as from the back. What is it?

Racecar

500

What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?

The letter "R"