blue7475 blue7475 23-12-2022 Chemistry Answered Use bond enthalpies to estimate the enthalpy change for each of the following reactions. H2C=O(g)+HCl(g)→H3C−O−Cl(g) H2O2(g)+2CO(g)→H2(g)+2CO2(g) 3H2C=CH2(g)→C6H12(g)