How does e=mc^2 connect to quarks

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?

Which formula can be used to calculate the molar mass of hydrogen peroxide

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring