Hello someone please help, im doing a test right now and i need someone to asnwer the question below! Who ever does give the best answer gets brainliest!

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 activity is an innate behavior

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these