Chemistry: Exothermic and Endothermic

Question 1

Outline how heat energy changes in an endothermic reaction

Answer 1

products end up with more heat energy than their reactants, heat energy has been
absorbed/gained from its surrounding

Question 2

Outline how heat energy changes in an exothermic reaction

Answer 2

products have less heat energy than their reactants, heat energy has been lost to its surroundings

Question 3

How is enthalpy change shown in an exothermic reaction?

Answer 3

with a negative enthalpy value

Question 4

How is enthalpy change shown in an endothermic reaction?

Answer 4

with a positive enthalpy value