Write balanced equations to correspond to each of the following descriptions:
This problem is pretty good evidence that you need to understand how to name ionic and molecular compounds and acids......
(a) When sulfur trioxide gas reacts with water, a solution of sulfuric acid forms.
SO3(g) + H2O(l) --> H2SO4(aq)
(b) Boron sulfide, B2S3(s), reacts violently with water to form dissolved boric acid, H3BO3, and hydrogen sulfide gas.
B2S3(s) + 6H2O(l) --> 2H3BO3(aq) + 3H2S(g)
(c) Phosphine, PH3(g) combusts in oxygen gas to form water vapor and solid tetraphosphorus decaoxide.
4PH3(g) + 8O2 --> 6H2O(l) + P4O10(s)
(d) When solid mercury (II) nitrate is heated, it decomposes to form solid mercury (II) oxide, gaseous nitrogen dioxide, and oxygen.
2Hg(NO3)2 --> 2HgO(s) + 4NO2(g) + O2(g)
(e) Here is the reaction - balance it yourself!
Cu(s) + H2SO4(aq) ----> CuSO4(aq) + SO2(g) + H2O(l)