What is the molar mass of H3PO4? (atomic mass: H = 1.01, P = 30.97, O = 15.99)​

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 class of molecules functions as chemical signals? hormones water carbohydrates proteins

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize