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Vocabulary
Moles to Moles
Mixed Problems
Mass to Mass
Finding products
100
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is mole ratio?
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?
100
Mg + 2HCl --> MgCl2 + H2 How many grams of hydrogen will be produced if we start with 2 moles of hydrochloric acid and excess magnesium?
What is 2 g H2?
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?

100

Predict the products of the reaction MgS->

MgS-> Mg + S 

200

When one of the reactants does not run out first during a chemical reaction?

What is excess?

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?
200
Mg + 2HCl --> MgCl2 + H2 What mass of hydrochloric acid (MM=36.5 g/mol) is needed to react with 2.50 moles of magnesium?
What is 182 g HCl?
200

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

What is 3.0 g KCl?

200

Predict the products of the equation Mg + O2 ->

MgO

300
The reactant that determines the amounts of the other reactants that can combine--and the amount of product that can form--in a chemical reaction.
What is the limiting reactant?
300
2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?
What is 1.2 mol MgO?
300

How many moles of aluminum(Al) are needed to combine with 1.58 mol of oxygen(O2) to make aluminum oxide(Al2O3)?

What is 2.1 mol Al?

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 62.0 g NaCl?

300

Predict  the products of the reaction of CH4 + O2 ->

H2O + CO2​​​​
400

The type of chemical reaction that reacts an acid and a base togther.

What is a neutrilizaiton reaction?

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(H2) react with an excess of nitrogen gas(N2)?

What is 4 mol NH3?

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?
400

Sodium hydroxide(NaOH) reacts with sulfuric acid (H2SO4; MM=98.1 g/mol) to form water(H20) and sodium sulfate(Na2SO4). How many grams of sodium sulfate(Na2SO4) (MM=124 g/mol) will be formed from 200 g NaOH (MM=40 g/mol) and an excess of sulfuric acid(H2SO4)?

What is 400 g Na2SO4? sig figs

400

Predict and balance the reaction formed when Aluminum reacts with Bromine.

Al +3Br2 --> AlBr3

500

What type of chemical reaction leads to the combination of two elements forming into one element? 

What is synthesis

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?

500

Aluminum oxide(Al2O3) reacts with iron(Fe) to form Fe3O4 and Aluminum(Al). Determine what the limiting reactant when you react 5 moles of aluminum oxide(Al2O3)  with 7 moles of iron(Fe).

What is iron?

500

When copper (II) chloride(CuCl2) reacts with sodium nitrate(NaNO3), copper (II) nitrate(Cu(NO3)2) and sodium chloride(NaCl) are formed. If 15 g CuCl2 (MM=134.5 g/mol) react with 20 g NaNO3 (MM=85 g/mol), how much sodium chloride(NaCl) (MM = 58.5 g/mol) can be formed?

What is 13 g NaCl?

500

Predict the products of the reaction AgNO3 + CaCl2->

Ca(NO3)2 + AgCl