<span>H2S + 3/2O2 --> SO2 + H2O </span> We are given the amount of O2 to be used in the reaction. This will be the starting point for our calculations. We do as follows:
1 is D - double-replacements do not make solid metals 2 is A - to have complete combustion the original compound must ONLY have C, H and O 3 is B - the elemental Mg replaces the H in the HCl
I believe that answer is D The heat from the Bunsen burner transfers to the water and the pot, then the heat from the pot transfers to the person’s hand.