Which chemicals are used in fire extinguishers?

Which chemicals are used in refrigrators, air conditioners, perfumes etc?

A substance X used as a antacid reacts with hydrochloric acid to produce a gas Y which is used in fire exitinguishers. Name the substance X and Y.

A substance X used as a antacid reacts with hydrochloric acid to produce a gas Y which is used in fire exitinguishers. Write a balanced equation of the reaction of X with hydrochloric acid?

How is baking soda prepared ? Why is it used as a fire extinguisher ?

Baking soda is used in small amount in making bread and cake. It helps to make this soft and spongy and aqua solution of baking soda turns red litmus blue. It is also used in Soda acid fire extinguisher. Use this information to answer the following questions HOw does it help in extinguishing fire?

Baking soda is used in small amount in making bread and cake. It helps to make this soft and spongy and aqua solution of baking soda turns red litmus blue. It is also used in Soda acid fire extinguisher. Use this information to answer the following questions Is the pH value of baking soda solution lesser than or greater than 7?

Baking soda is used in small amount in making bread and cake. It helps to make this soft and spongy and aqua solution of baking soda turns red litmus blue. It is also used in Soda acid fire extinguisher. Use this information to answer the following questions How does baking soda help to make cakes and bread soft and spongy.

Which gas is produced in soda acid fire extinguisher?

Which chemical is used for testing Starch in Food?