Which is correct regarding an endothermic reaction?
a. the reaction does not occur.
b. the reaction liberates heat.
c. the enthalpy of the reactants is higher than the enthalpy of the products.
d. the sign of the h is positive.
e. the temperature increases when the reaction is carried out in a calorimeter?

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.