Chemistry Stoichiometry Review

Front

2H₂  +   O₂  →  2H₂O
How many moles of oxygen are consumed if 8 moles H₂ are used?

Back

4

Front

For the Balanced Reaction: 3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?

Back

3 mol MgO / 2 mol Fe

Front

2 KClO₃ → 2 KCl + 3 O₂
How many moles of oxygen are produced when 6.7 moles of KClO₃ decompose completely?

Back

10.05 mol

Front

2Na + 2H₂O → 2NaOH+ H₂
How many grams of hydrogen are produced if 120 g of Na are available?

Back

5.27 g

Front

Stoichiometry

Back

using the balanced reaction and moles to calculate amounts needed and used

Front

Balance the equation: Fe + CuCl₂ --> Cu + FeCl₃

Back

2,3,3,2

Front

Mole ratio of HCl to CaCl₂ in the reaction: Ca(OH)₂ + 2 HCl --> CaCl₂ + 2 H₂O

Back

2:1

Front

Excess Reagent

Back

what you have left over

Front

When does a chemical reaction stop?

Back

When the limiting reactant is used up

Front

What is the first thing you must do to solve a stoichiometry problem?

Back

Write a Balanced Equation