Which of the following shows a chemical reaction in which hydrogen sulfide and oxygen are the reactants and sulfur and water are the products? sulfur + oxygen → hydrogen sulfide + water
hydrogen sulfide + oxygen → sulfur + water
water + oxygen → sulfur + hydrogen sulfide
O sulfur + water → hydrogen sulfide + oxygen

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?