Reactivity increases down the group
Below, "M" indicates a group 2 element
- 2M + O2 ----> 2MO
- M + 2H2O -----> M(OH)2 + H2O
- Oxides react with water to produce a solution of metal hydroxide.
- Hydroxides react with water to produce an alkaline solution.
- Carbonates undergo thermal decomposition to form a metal oxide and carbon dioxide.
Comments
No comments have yet been made