How many grams of acetylene C2H2 are produced by adding 3 moles of CaC2 ?

What is the molar mass of CaC2?

Please help. I need these ASAP

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?

  the mississippians were considered to be  horticulturalists, which means they were

What is the atomic number of an atom that has 6 protons