Which of the following is a balanced chemical equation? h2o2 --> h2o + o2 2 fe2o3 + 3 c --> 4fe + 3co2 so2 + o2 + 2h2o --> 4h2so4 2 mg + hcl --> mgcl2 + h2

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

In which phase(s) do the molecules take the shape of the container?

Type the letter that represents the correct location for each particle type below.