Combustion reactions are relatively easy to carry out and study, and their data can be combined to give enthalpies of other types of reactions. as an illustration, calculate the standard enthalpy of hydrogenation of cyclohexane given that the standard enthalpies of combustion of the two compounds are -3752 kj mol-1 (cyclohexene) and -3953 kj mol-1 (cyclohexane).

Which are causes of mechanical weathering? check all that apply.oacid raino plant growtho animal actionso carbon dioxideo pressure release

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.