Question

Till lepelului.
0. In which of the following substances will there be:
(a) increases in mass(b) decreases in mass
(c) no change in mass when they are exposed to air.
(i) Sodium carbonate crystals (ii) Table salt
(iii) Sodium chloride (pure) (iv) Conc. sulphuric acid
(u) Anhydrous copper sulphate​

Answer 1

Answer:

a is ii

b is i

c is iii

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Answer 2

Answer:

Explanation:

there will be no change in option 1, 2 ,4 and 5

and there will be a decrease in mass in conc. Sulphuric acid

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