# Balance the chemical equation, indicating the physical state of the reactants and products. C a...

## Question:

Balance the chemical equation, indicating the physical state of the reactants and products.

{eq}Ca_2CO_3+HCl \rightarrow CaCl_2+CO_2+H_2O {/eq}

## Characteristics of Gas-Evolution Reaction:

A gas-evolution reaction has the following properties:

• At least one gaseous product is formed during the reaction.
• Entropy increases abruptly.
• Reactions can be decomposition, redox, combustion, etc.