The energy that leaves or enters a system during a chemical reaction comes from what source *
The building and breaking of chemical bonds
the conversion of mass to energy
Heat absorbed by the surroundings
The kinetic energy or electron motion

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

Nonmetal halogen family atmoic mass 35

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct