Temperature rises.
Calcium oxide is a white, caustic and alkaline crystalline solid at room temperature.
solid
Starts off as Calcium Carbonate , when heated the calcium carbonate becomes Calcium Oxide + Carbon Dioxide, the Calcium Oxide then reacts with water to produce Calcium Hydroxide and then when more water is added then filtered it becomes Calcium Hydroxide Solution, C02 is then added to form Calcium Carbonate again [:
yes
Iron will react with calcium oxide as iron is more reactive than calcium, therefore calcium (which is the more reactive metal) will displace calcium (the less reactive metal) to form a compound. This is called a displacement reaction.
Calcium oxide + water
everything blows up!! :O
If lots of water is added then the temperature will rise
Calcium oxide is not formed here, it is added.
A chemical reaction occurs producing Calcium chloride and water:CaO + 2 HCl ----> CaCl2 + H2O
yes
Calcium oxide is a white, caustic and alkaline crystalline solid at room temperature.
Calcination is the heating of an ore at high temperature. Calcium carbonate undergoes calcination to give calcium oxide. Calcium oxide doesn't undergo calcination.
Calcium hydroxide.
solid
It decomposes into calcium oxide and carbon dioxide
calcium oxide (solid crystals at room temperature) is a strong alkali, and anything acidic in the right quantity will neutralise it.