Calculate the number of moles of water lost. (take the # of grams in #10 and convert to moles.)

Can someone me with questions 12 and 13 plz.

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.

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.