Determine the total heat evolved in joules in a solution of 19 ml of naoh and 19 ml of hcl separately, each had a temperature of 26.4 degrees celsius. upon addition, the highest temperature reached by the solution was graphically determined to be 37.9 degrees celsius. round to the nearest whole number.

Compounds a and b react to form compounds c and d according to the equation: aa + bb → cc + dd. under which conditions will the rate law be given by the equation: rate = k[a]a[b]b? a. the reaction takes place in one step. b. the reaction is endothermic. c. the reaction is exothermic. d. the reaction involves more than one step.