Question

A compound ‘X’ of sodium is used as an antacid and it decomposes on strong heating.(i) Name the compound ‘X’ and give its chemical formula.(ii) Write a balanced chemical equation to represent the decomposition of ‘X’.(iii) Give one use of compound ‘X’ besides an antacid.​

Answer 1

Answer:

tis is answer no (ii)

1. X=baking soda(NaHCO3)
2. answer in picture
3. it is used to make baking powder

Answer 2

(i) Name of compound ‘X’ is calcium carbonate and its chemical formula is $CaCO_{3}$ .

(ii) A balanced chemical equation to represent the decomposition of ‘X’ is $CaCO_{3} \rightarrow CaO + CO_{2}$

(iii) One use of compound ‘X’ besides an antacid is that it is also used as a dietary supplement in order to keep the balance of calcium in human body.​

Explanation:

• Chemical formula of antacid is $CaCO_{3}$ and it is also known as calcium carbonate. When this antacid is heated then it will decompose as follows.

              $CaCO_{3} \rightarrow CaO + CO_{2}$

• This means that calcium carbonate on heating decomposes to give calcium oxide and carbon dioxide as the product. Hence, the compound X is $CaCO_{3}$.

• One of the use of calcium carbonate is that it is also used as a dietary supplement in order to keep the balance of calcium in human body.

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