Question

What happens when hydrochloric acid reacts with the following? Also write the complete balanced equation.

1. Bleaching powder
2. Zinc granules
3. Baking soda

Answer 1

We have to know that the calcium hypochlorite is an inorganic compound with formula $Ca{\left( {OCl} \right)_2}$.It is the main active ingredient of commercial products called bleaching powder. Zinc granules consist of zinc metals. Sodium bicarbonate, commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula $NaHC{O_3}$.

Complete answer:
We will look at all the reactions one by one to answer this question:
Reaction of bleaching powder with hydrochloric acid can be represented as:
$Ca{\left( {OCl} \right)_2} + HCl \to CaC{l_2} + C{l_2} + {H_2}O$
When bleaching powder reacts with hydrochloric acid, it gives calcium chloride, chlorine and water.
Reaction of zinc granules with hydrochloric acid can be represented as:
$Zn + HCl \to ZnC{l_2} + {H_2}$
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas, releasing small bubbles of hydrogen and forming zinc chloride $ZnC{l_2}$ Zinc is a brittle, silvery-blue metal. It is quite ductile and malleable at temperatures ranging from .
Reaction of baking soda with hydrochloric acid can be represented as:
$NaHC{O_3} + 2HCl \to NaCl + {H_2}O + C{O_2}$
This is a neutralization reaction that releases bubbles of carbon dioxide gas. When you mix the baking soda, acidic ingredient, and a liquid together, you'll get bubbles of carbon dioxide gas. Specifically, the baking soda (a base) reacts with the acid to give you carbon dioxide gas, water, and salt.

Note:
We need to remember that the baking soda can neutralize excess stomach acid, which contains hydrochloric acid. A drink made with a teaspoon of baking soda mixed in a large amount of water can help relieve symptoms of heartburn and acid reflux. $Ca{\left( {OCl} \right)_2}$ is the main element of bleaching powder.