2. Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values:

2C2(g) + H2O(g) → C2H2(g) + ⁵/₂ O2(g)

C2H2(g) + 2H2(g) → C2H6(g) ΔH = –94.5 kJ

H2O(g) → H2(g) + ½ O2 (g) ΔH =71.2 kJ

C2H6(g) + ⁷/₂ O2(g) → 2 CO2(g) + 3 H2O(g) ΔH = –283 kJ

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?