If you need to multiply the following reaction by 2 to be an intermediate reaction in a Hess's law problem, what would be the final value for the
enthalpy of reaction you use for this intermediate reaction? C2H4+3 02 → 2
CO2 + 2 H20, AH = -1410 kJ
O A. 2820 kJ
B. -1410 kJ
C. -2820 kJ
D. 1410 kJ

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)