Match the formula for the following compound:
iron (iii) sulfate

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?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?