Question 44
Fill in the blanks

(a) In a chemical reaction, the sum of the masses of the reactants and products remains unchanged. This is called _.

(b) A group of atoms carrying a fixed charge on them is called _.

(c) The formula unit mass of $C a_{3} (P O_{4})_{2}$ is __.

(d) Formula of sodium carbonate is _ and that of ammonium sulphate is ____.

Open in App

Solution

(a) Law of conservation of mass

(b) Polyatomic ion

(c) (3 x atomic mass of Ca) + (2 x atomic mass of phosphorus) + (8 x atomic mass of Oxygen) = 310

(d) $N a_{2} C O_{3} a n d (N H_{4})_{2} S O_{4}$

Suggest Corrections

Similar questions

Fill in the following blanks with suitable words:

(a) In water, the proportion of oxygen and hydrogen is ___ by mass.

(b) In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ___

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program