does not increase
lose
absorbs heat from
emit heat to
increases
gain
An endothermic reaction feels cold to the touch because the reaction (acting here as the system) _________ the surroundings. When you touch the vessel in which the reaction occurs, you, being part of the surroundings, ________ heat to the system (the reaction), which makes you feel cold. The heat absorbed by the reaction (from your body, in this case) ________its temperature, but rather becomes potential energy stored in chemical bonds.