The valence of aluminum is +3, and the valence of chlorine is –1. the formula for aluminum chloride is correctly written as

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.