What is the balanced equation for limestone?

Answer 1

...Calcium Carbonate ===> Calcium Oxide(s) + Carbon Dioxide(g).

CaCO3(s) + heat ===>CaO(s) + CO2(g).

...Calcium Oxide(s) + Water(l) ===> Calcium Hydroxide(s)

CaO(s) + H2O(l) ===> Ca(OH)2(s).

...Calcium Hydroxide(aq) + Carbon Dioxide (g) ===>

Calcium Carbonate(s) + Water (l)

Ca(OH)2(aq) + CO2(g) ===> CaCO3(s) (suspension) + H2O(l)

These equations do not need balancing, they are already balanced.

Answer 2

The "acid rain" here is the one created by the reaction in the air of water and carbon dioxide. They form carbonic acid, which will eat away at limestone, which is calcium carbonate. This reaction, which is reversable, is responsible for many of the huge caves in the world. Here's the word equation for the reaction: Calcium carbonate + carbonic acid <=> calcium ions + carbonate ions Note that the carbonic acid is aqueousmeaning it is in water, and water is the "medium" in which all this takes place, even though it does not necessarily show up in the word equation.

Answer 3

Limestone is calcium carbonate - CaCO3 (a formula not an equation).