Which of the following is a balanced chemical equation?
2 mg + hc1 → mgcl2 + h2
so2 + o2 + 2 h2o → 4 h2so4
2 fe2o3 + 3 c → 4 fe + 3 co2
h2o2 → h2o + o2

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

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.

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol