Question

State whether a sample of each of the following would increase or decrease in mass if exposed to air.

(a) Solid NaOH, (b) Solid $CaC{l}_2$,

(c) Solid $N{a}_{2}C{O}_3.10H_{2}O,$ (d) Conc. Sulphuric acid,

(e) Iron (III) Chloride

Answer 1

(a)Increases
(b) Increase
(c) Decrease
(d) Increases
(e)Increases