StoichiopardyHoly

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Final Chempardy

Let’s talk… mole to mole

$100 Question from Holy Moley

This is the branch of chemistry that deals with mass relationships in compounds and reactions.

$100 Answer from Holy Moley

What is Stoichiometry?

$200 Question from Holy Moley

In a chemical reaction, these numbers can be used to determine the mole ratio of any reactants and/or products.

$200 Answer from Holy Moley

What are coefficients?

$300 Question from Holy Moley

These are the units of molar mass.

$300 Answer from Holy Moley

What are g/mol?

$400 Question from Holy Moley

In the reaction represented by the equation 2Al2O3 4Al + 3O2, this is the mole ratio of Aluminum to Aluminum Oxide.

$400 Answer from Holy Moley

What is 2:1?

$500 Question from Holy Moley

This is the molar mass of Copper(II) Sulfate.

$500 Answer from Holy Moley

What is a 160 g/mol?

$100 Question from Mole to Mole

This is the coefficient of hydrogen gas in the balanced form of the following reaction:

H2 + O2 H2O

$100 Answer from Mole to Mole

What is 2?

$200 Question from Mole to Mole

This is the coefficient in front of nitrogen gas in the correctly balanced form of the equation:

NH4NO2 N2 + H2O

$200 Answer from Mole to Mole

What is 1?

$300 Question from Mole to Mole

This is the mole ratio of H2O to CH4 in the balanced form of the following reaction:

CH4 + O2 CO2 + H2O

$300 Answer from Mole to Mole

What is 2:1?

$400 Question from Mole to Mole

This is how many moles of LiOH are required to react 20 moles of CO2 in the following reaction:

CO2 + 2LiOH Li2CO3 + H2O

$400 Answer from Mole to Mole

What is 40 moles?

$500 Question from Mole to Mole

In the balanced form of the following reaction, this is how many moles of ammonia are produced when 6 mol of hydrogen gas reacts completely:

N2 + H2 NH3

$500 Answer from Mole to Mole

What is 4 moles?

$100 Question from 2 or 3 Step

This is the amount of moles that are contained in 18 grams of water.

$100 Answer from 2 or 3 Step

What is 1 mole?

$200 Question from 2 or 3 Step

This is the mass of carbon dioxide that is needed to react with 3.00 mol of H2O in the following reaction (MM of CO2 = 44 g/mol):

6CO2 + 6H2O C6H12O6 + 6O2

$200 Answer from 2 or 3 Step

What is 132 g.?

$300 Question from 2 or 3 Step

This is the mass of magnesium oxide produced from 2 moles of magnesium in the following reaction:

2Mg + O2 2MgO

$300 Answer from 2 or 3 Step

What is 81 g.?

$400 Question from 2 or 3 Step

This is the amount of moles of magnesium oxide that are needed to produce 125 grams of oxygen gas in the following reaction:

2MgO 2Mg + O2

$400 Answer from 2 or 3 Step

What is 7.8 g. of MgO?

$500 Question from 2 or 3 Step

This is the mass of aluminum produced by the decomposition of 5 g of Al2O3 according to the following reaction:

2Al2O3 4Al + 3O2

$500 Answer from 2 or 3 Step

What is 2.6 g.

$100 Question from Limit my Percent

This is the reactant which controls how much of any product will be made.

$100 Answer from Limit my Percent

What is the limiting reactant?

$200 Question from Limit my Percent

This is how you can tell you have a limiting reactant problem

$200 Answer from Limit my Percent

What is there are two amounts Given in the problem?

$300 Question from Limit my Percent

The percent yield tells you a relationship between the _________ yield and actual yield of a certain product.

$300 Answer from Limit my Percent

What is theoretical?

$400 Question from Limit my Percent

If 75.0 g of CO reacts to produce 68.4 g of CH3OH, this is the percentage yield of CH3OH according to the following reaction:

CO + 2H2 CH3OH

$400 Answer from Limit my Percent

What is 79.7%?

$500 Question from Limit my Percent

When 2.00 x 103 g of CaCO3 decomposes according to the following equation, the actual yield of CaO is 1.05 x 103 g. This is the percent yield.

CaCO3 CaO + CO2

$500 Answer from Limit my Percent

What is 93.8%?

$100 Question from Random

At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water?

$100 Answer from Random

1.8 L

$200 Question from Random

Iron (III) Oxide is formed when iron combines with oxygen in the air. How many grams of Iron (III) oxide are formed when 16.7 g of Fe reacts completely with oxygen?

$200 Answer from Random

23.9g

$300 Question from Random

How many grams of chromium are needed to react with an excess of copper (II) Sulfate to produce 27.0g of Copper?(The other product is Chromium (III) Sulfate)

$300 Answer from Random

14.7g

$400 Question from Random

How many liters of chlorine gas can be produced when 0.98L of HCL react with excess O2 at STP?

$400 Answer from Random

0.49L

$500 Question from Random

What is the limiting Reagent when 150.0g of Nitrogen reacts with 32.1 g of hydrogen to form Ammonia?

$500 Answer from Random

There is none, both produce 182g of Ammonia

Final Stoichiopardy

If 16.2 g of Mg are heated with 12.0 g. of H2O according to the following balance equation, what are the excess moles of the excess reactant?

Final Stoichiopardy Answer

What is 0.334 mol of Mg