Balancing Equations
Mole to Mole
Mole to grams/Grams to moles
Grams to Grams
Molar mass
100

___ HCl + ___ NaOH --> ___ NaCl + ___ H2O

What is 

1 HCl + 1 NaOH --> 1 NaCl + 1 H2O

100

N2 + 3H2  --> 2NH3

Given 2.0 moles of Nitrogen, N2, how many moles of Hydrogen, H2, are needed? 

What is 

6.0 moles H2

100

N+ 2O2 → N2O4

Given 15.0g of N2O4, how many moles of O2 were required?

What is 

0.326 mol O2

100

2 KClO3 --> 2 KCl + 3 O2

How many grams of O2 will be formed from 3.76 grams of KClO3?

What is 

1.47g O2

100

Find the molar mass and round to the nearest 0.1 grams

NaBr

What is 

102.9 g/mol 

200

___ K + ___ B2O3 --> ___ K2O + ___ B

What is

6 K + 1 B2O3 --> 3 K2O + 2 B

200

2KClO3 → 2KCl + 3O2

Given 6.0 moles of potassium chlorate, KClO3, how many moles of oxygen, O2, are produced?

What is 

9.0 moles of O2 

200

CaC2 + 2H2O → Ca(OH)2 + C2H2

If you have 5.50 mol of CaC2, how many grams of C2H2 do you get?

What is

143g C2H2

200

2 KClO3 --> 2 KCl + 3 O2

How many grams of KClO3 are needed to make 30.0 grams of KCl?

What is

49.3g KCl

200

Find the molar mass and round to the nearest 0.1 grams

PbSO4

What is 

303.3 g/mol

300

___ H3PO4 + ___ KOH -> ___ K3PO4 + ___ H2O

What is 

1 H3PO4 + 3 KOH -> 1 K3PO4 + 3 H2O

300

Zn + 2HCl → ZnCl2 + H2

Given 3.0 moles of zinc, how many moles of hydrogen, H2, are produced? 

What is 

3.0 moles of H2

300

CaC2 + 2H2O → Ca(OH)2 + C2H2

How many moles of water are needed when 65.0g of CaC2 have reacted?

What is 

2.03 mol H2O

300

4 Fe + 3 O2 --> 2 Fe2O3

Given 42.7 grams of Fe, how many grams of Fe2O3 are produced?

What is

61.0 Fe2O3

300

Find the molar mass and round to the nearest 0.1 grams

Na3PO4

What is 

164.0 g/mol

400

___ N2 + ___ O2 --> ___ N2O5

2 N2 + 5 O2 --> 2 N2O5

400

C3H8 + 3O2 → 3CO2 + 4H2

Given 4.7 moles of propane, C3H8, how many moles of oxygen are needed to react? 

What is 

14.1 moles of O2

400

2NaClO3→ 2NaCl + 3O2

How many grams of NaCl are produced when 20.00mol of NaClO3 reacts?

What is

1170g NaCl

400

4 Fe + 3 O2 --> 2 Fe2O3

Given  17.0 grams of O2, how many grams of Fe2O3 are produced?

What is 

56.6g Fe2O3

400

Find the molar mass and round to the nearest 0.1 grams

(NH4)2CO3

What is 

96.0 g/mol

500

___ Na + ___ NaNO3 --> ___ Na2O + ___ N2

What is 

10 Na + 2 NaNO3 --> 6 Na2O + 1 N2

500

K3PO4 + Al(NO3)3 → 3KNO3 + AlPO4

Given 4.8 moles of potassium phosphate, K3PO4, how many moles of potassium nitrate, KNO3, are produced? 

What is 

14.4 moles KNO3

500

2NaClO3→ 2NaCl + 3O2

How many moles of O2 are produced when 40g of NaCl are formed?

What is 

1 mol O

500

2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O

How many grams of H2O are produced when 5.38g of O2 is reacted?

What is 

2.33g H2O

500

Find the molar mass and round to the nearest 0.1 grams

Zn(C2H3O2)2

What is 

183.4 g/mol

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