Question

How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite?

A. 3
B. 2
C. 23
D. 10

Answer 1

I'd say B, 2 reactions. Calcite is defined as
`CaCO_(3)`, and carbonic acid as
`H_(2) C O_(3)`.

The usual reaction would be to mix both components, obtaining the following:


`CaCO_(3)` +
`H_(2) C O_(3)` =
`Ca^(2+) + 2HCO_(3) ^(-)`

Which means we have 2 reactions. Nevertheless, to give you a full explanation, I'd need more information to be sure you're not talking about a reaction with other components involved.