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100

Calculate the molar mass for H2O

18.015 g/mol

100

__N + __ O2 -> __ NO2

How many moles of NO2 will be produced if 3.6 moles of NO react?

2 NO + O2 -> 2 NO2

3.6 mol NO2


100

__Mg + __ HCl -> __ MgCl2 + __ H2

How many grams of HCl are consume by the reaction of 2.50 moles of magnesium?

Mg + 2 HCl -> MgCl2 + H2

180 grams HCl

100

LiOH + HBr -> LiBr + H2O

If you start with 10 grams of lithium hydroxide, how many grams of lithium bromide will be produced?

36.25 LiBr

100

1 N2 + 3 H2 -> 2 NH3

If you have 25 grams of N2, how many moles of NH3 can be produced?

 1.78 mol NH3

200

Calculate the molar mass for Na2CO3

105.988 g/mol

200

__N + __ O2 -> __ NO2

How many moles of NO must react to form 4.67 moles of NO2?

2 NO + O2 -> 2 NO2

4.67 mol NO


200

__Mg + __ HCl -> __ MgCl2 + __ H2

What is the mass in grams of H2 gas when 4.0 moles of HCl is added to the reaction?

Mg + 2 HCl -> MgCl2 + H2 

4 grams H2

200

C2H4 + 3O2 -> 2CO2 + 2H2O

If you start with 45 grams of C2H4, how many grams of carbon dioxide will be produced? 

141.43 grams CO2

200

Sb2O3 + 3 C -> 2 Sb + 3 CO

Determine the mass of anitmony produced when 0.46 grams of antimony ( III ) oxide reacts with carbon?

0.38 g Sb

300

Calculate the molar mass for K2Li3NO2

145.024 g/mol

300

__NH3 + __ O2 -> __ N2 + __ H2O

How many moles of H2O are produced from 20 moles of NH3?

4 NH3 + 3 O2 -> 2 N2 + 6 H2O

30 mol H2O 

300

CaC2 + 2H2O -> C2H2 + Ca(OH)2

If 3.20 moles of CaC2 are consumed in this reaction, how many grams of H2O are needed?

CaC2 + 2H2O -> C2H2 + Ca(OH)2

115.7 grams of H2O

300

Mg + 2NaF -> MgF2 + Na

If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced?

4.06 grams MgF2

300

2 CO + O2 -> 2 CO2

In the combustion of carbon monoxide, what mass of CO is required to produce 0.69 grams of carbon dioxide?

0.44 grams CO

400

Calculate the molar mass for 3(H2O)

54.045 g/mol

400

__ AlF3 + __ O2 -> __ Al2O3 + __ F2

15 moles of AlF3, will produce how many moles of F2?

4 AlF3 + 3 O2 -> 2 Al2 O3 + 6 F2

22.5 moles F2

400

2 Al + 3 Cl2 -> 2 AlCl3

How many grams of AlCl3 will be produced if 2.50 moles of Al react?

333 grams AlCl3

400

2 HCl + Na2SO4 ->2 NaCl + H2SO4

If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid ( H2SO4 ) will be produced?

27.2 grams H2SO4

400

Zn + 2 HCl -> ZnCl2 + H2


What amount of H2 in grams is produced when 2.5 grams of Zn react with HCl?

2.788 grams HCl

500

Calculate the molar mass for 2(H2O)KCLO3

158.578 g/mol

500

__C3H8 + __ O2 -> __ CO2 + __ H2O

How many moles of oxygen react with 11 moles of C3H8?

1 C3H8 + 5 O2 -> 3 CO2 + 4 H2O

55 mol O2

500

2 Al + 3 Cl2 -> 2 AlCl3

How many grams of aluminium will react with 3.4 moles of chlorine?

61 grams Al

500

2 KClO3 -> 2KCl + 3O3 

How many grams of potassium chloride, KCl, are produced if 25.0 grams of potassium chlorate, KClO3, decompose?

15.2 grams KCl

500

H2SO4 + 2 NaOH -> 2 H2O + Na2SO4

How many moles of H2O are produced if 20 moles of Na2SO4 are produced?

40 moles H2O