moles -test/ As level

TEST 2

Calculations and Equations

1. Balance the equation

FeCl3 + H2S S + FeCl2 + HCl
[5]

2. Write a balanced symbol equation for the reaction

sodium carbonate + hydrochloric acid sodium chloride + carbon dioxide + water
[5]


3. A mixture containing 2.80 g of iron and 2.00 g of sulphur is heated together.
What mass of iron(II) sulphide , FeS, is produced?
Fe (s) + S (s) FeS (s)