Question

which statement about endothermic reactions is true?
more heat is given off than is put into the reaction
the reaction container always feels hot
energy from an outside source is continuously being added
the reactants create energy to form products

Explanation:

• For an endothermic reaction, heat is absorbed. So, energy from an outside source is continuously being added.
• If more heat is given off than is put into the reaction, it is an exothermic reaction.
• In an endothermic reaction, the reaction container feels cold as heat is absorbed.
• Energy is not created by reactants; it is either absorbed (endothermic) or released (exothermic) according to the law of conservation of energy.

Answer:

Energy from an outside source is continuously being added.