Ridha's Equations

Question 1

Group 2 Metal + Oxygen

Answer 1

2Ba + O2 –> 2BaO

Question 2

Group 2 Metal + Chlorine

Any changes in oxidation state?

Answer 2

Ba + Cl2 –> BaCl2

Ba: 0 –> +2
Cl: 0 –> -1

Question 3

Group 2 Metal + Water

Exceptions?

Answer 3

Ba + 2H2O –> Ba(OH)2 + H2

Magnesium is an exception (only reacts w steam)
Mg + H2O –> MgO + H2

Question 4

Thermal decomposition of group 1 carbonates

Any notes?

Answer 4

Li2CO3 –> Li2O + CO2

G1 Carbonates usually don’t decompose like this. They form metal nitrites instead.

2KNO3 –> 2KNO2 + O2

Question 5

Group 1 Nitrates

Answer 5

4LINO3 –> 2LI2O + 4NO2 + O2