How many moles of O2 will be formed from 1.65 moles of KClO3? 

2 KClO3 🡺 2 KCl + 3 O2

 How many moles of Fe2O3 are produced when 0.275 moles of Fe is reacted?

4 Fe + 3 O2 🡺 2 Fe2O3 

How many grams of Fe2O3 are produced when 42.7 grams of Fe is reacted? 

4 Fe + 3 O2 🡺 2 Fe2O3

How many moles of O2 are produced when 1.26 moles of H2O is reacted? 

2 H2O 🡺 2 H2 + O2

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

2 KClO3 🡺 2 KCl + 3 O2

If 2.9 grams of NO2 are made, how many moles of NO reacted?

                   2  NO + O2  🡺  2NO2

How many grams of O2 will be formed from 12.00 moles of KClO3 react? 

2 KClO3 🡺 2 KCl + 3 O2

  What mass of iron is needed to react with 16.0 grams of Sulfur?

8 Fe + S8 → 8 FeS

How many moles  of FeS are produced from 36 grams of Iron?

8 Fe + S8 → 8 FeS

What mass of copper (II) sulfide would be formed if 18.5 moles of copper reacts?

 8 Cu + S₈ --> 8 CuS

What mass of water would be formed from the decomposition of 8.52 g of tin (IV) hydroxide?

Sn(OH)₄ -->SnO₂ + 2H₂O

If the burning of propane (C3H8) produces 15.0 moles of carbon dioxide, how many moles of oxygen were used?

C₃H₈ + 5O₂ → 3CO₂+ 4H₂O

What mass of Cd is produced if 85.0 g of Al2Se3 is produced?

3CdSe + 2Al --> Al₂Se₃ + 3Cd

How many moles of HF will be needed to react with 48 grams of Tin, Sn?

                                              Sn + 2HF --> SnF₂+ H₂

What mass of H2SO4 would be required to react with 0.75 mol of NaOH?

H₂SO₄ + 2NaOH --> Na₂SO₄ + 2H₂O

What mass of H₂O is formed when H₂ reacts with 384 g of O₂?

2H₂ + O₂ --> 2H₂O

Calculate the number of moles of Hg(OH)₂ required to react with 4.8 moles of H₃PO₄.

                                           3Hg(OH)₂ + 2H₃PO₄ → Hg₃(PO₄)₂ +6H₂O

What mass of HCl is required to react with 5.50 g of Zn?

Zn + 2HCl→ ZnCl₂ + H₂

What mass of CO is needed to produce 100.0 g of CO2?

2CO + O₂ → 2CO₂