Soething about Chemistry

Question

(Using chemical names,write a word equation for the reaction that occurs when....)
1.)hydrochloric acid is added to the powder of calcium carbonate.
2.)solid calcium carbonate is heated strongly.
3.)a little water is added to quicklime.
4.)carbon dioxide ib bubbled into limewater.



Thanks~

Answer 1

1) hydrochloric acid + calcium carbonate → calcium chloride + carbon dioxide + water

2) calcium carbonate → calcium oxide + carbon dioxide

3) water + calcium oxide → calcium hydroxide

4) carbon dioxide + calcium hydroxide → calcium carbonate + water