write balanced chemical equation

  1. iron is heated strongly in the air
  2. steam is passed over red hot iron
  3. aluminium is treated with dil. HCL
  4. Mg is treated with very dil. nitric acid
  5. ccalcium is heated in an atmosphere of hydrogen gas

1. 4Fe + 3O2 --heat--> 2Fe2O3 

2. 3Fe + 4H2O => Fe3O4 + 4H2

3. 2Al + 6HCl => 2AlCl3 + 3H2
4. Mg + 2HNO3 => 2MgNO3 + H2

5. Ca + H2 --heat--> CaH2 (Calcium Hydride)

  • 1

1. 2Fe + o2 = 2 feo

2. 3fe +  4h2o =  fe3o4 + 4h2

  • 2

3. 2al +6hcl =2 alcl3 +  3h2

4. mg + hno3 = sorry i dont know bcoz most metals dont give h2 while reacting with hno3

  • -2
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