the shinny finish of wall after white wash is because of a) calcium carbonate ,b) calcium hydroxide c) calcium carbonate d) calcium phosphate​

Which statement is true about ionic compounds?

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Salt in oceans comes from and of rocks