A chemical equation is shown below. HgS + O2 → HgO + SO2
What are the coefficients that should be added to balance this equation? Use complete sentences to explain your answer.
Explain how this chemical reaction demonstrates the conservation of mass. (10 points)

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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 of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Why does asexual reproduction result in offspring with identicle genetic variation