Question

What is the balanced equation for the neutralization of hydrobromic acid with calcium carbonate?

Answer 1

Hint: Before answering this question, we should know what the reactants are. Example: In this, We know that the reactants are hydrobromic acid and calcium carbonate and they both react with each other. The chemical formula of Calcium carbonate is $CaC{{O}_{3}}$ and the chemical formula of hydrobromic acid is HBr.

Complete answer:
Here, the reaction is the sum of the two reactions :
The hydrobromic acid (HBr) neutralizes the Calcium Carbonate ($CaC{{O}_{3}}$) in a double displacement reaction ( The reaction in which the formation of two new compounds occur when there is an exchange of ions in the two reactants) which results in the production of Calcium bromide ($CaB{{r}_{2}}$) and carbonic acid (${{H}_{2}}C{{O}_{3}}$).
2HBr + $CaC{{O}_{3}}$$\to $$CaB{{r}_{2}}$+ ${{H}_{2}}C{{O}_{3}}$ (1)
Carbonic acid decomposes to form Carbon dioxide and water as it is unstable.
${{H}_{2}}C{{O}_{3}}$$\to $$C{{O}_{2}}+{{H}_{2}}O$ (2)
Then, we will add the above two equations which will result in the formation of Calcium bromide, Water, and Carbon dioxide.
Adding equation (1) and (2) gives-
$2HBr+CaC{{O}_{3}}\to CaB{{r}_{2}}+{{H}_{2}}O+C{{O}_{2}}$
The neutralization reaction of Calcium carbonate and hydrobromic acid gives calcium bromide, carbon dioxide, and water.

Note:
Balancing the chemical equation is necessary. To balance the neutralization reaction includes that there should be an equal number of moles of each element on both sides of the chemical reaction. In the above neutralization equation, it is already balanced as two moles of H are there on both sides, one mole of Cl on both sides, one mole of Na on both sides, and one mole of O on both sides.