8. Thermochemistry

Which of the following best describes the process of freezing water?

Which statement is true about endothermic and exothermic reactions?

Which of the following energy profile diagrams best illustrates an endothermic reaction with high activation energy?

Which of the following best describes an exothermic reaction?

Which of the following is an endergonic process?

Which of the following is an example of an endothermic reaction?

Which of the following events is endothermic?

Which of the following best defines an exothermic reaction?

Which of the following statements is true regarding endergonic reactions?

Which of the following chemical or physical changes is an endothermic process?

Which type of reaction typically occurs in a chemical hand warmer?

Which statement best describes an exothermic reaction?

Which of the following best describes an endothermic reaction?

When heat is added to a substance, which of the following typically occurs?

Given the reaction: 2H_2(g) + O_2(g) ightarrow 2H_2O(l), predict whether this reaction is exothermic or endothermic.