Question

Which of the following is an example of HYDRATION?
Sodium chloride dissolves in water
Carbonate rocks dissolve in carbonic acid
Iron forms iron oxides
Calcium sulphate turns into gypsum​

Answer 1

Answer:

${Other examples of hydrates are Glauber's salt (sodium sulfate decahydrate, Na2SO4∙10H2O); washing soda (sodium carbonate decahydrate, Na2CO3∙10H2O); borax (sodium tetraborate decahydrate, Na2B4O7∙10H2O); the sulfates known as vitriols (e.g., Epsom salt, MgSO4∙7H2O); and the double salts known collectively as alums (M+2 ...}}$