What happens when calcium reacts with water ? Write the chemical equation of the reaction of calcium with water.

56 What special name is given to substances like aluminium oxide. 56 Name another metal oxide which behaves like aluminium oxide. 57 Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick? 58 You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?