8. Thermochemistry

If a reaction is exothermic, which of the following statements is correct?

Which statement correctly describes the difference between an endothermic and an exothermic reaction?

An endothermic reaction causes the surroundings to:

Which of the following best describes an endothermic reaction?

Which of the following is true about exothermic reactions?

Which of the following best defines an exothermic reaction?

In which of the following types of reactions is heat released to the environment?

Which of the following is an endothermic process?

Which of the following phase changes involves the absorption of heat?

Which of the following statements best describes an exothermic reaction?

A positive value for ΔH for a chemical reaction is an indication of which of the following?

Which type of reaction releases energy to the surroundings?

Which type of chemical reaction absorbs energy from its surroundings and requires energy input for the reaction to proceed?

Which of the following reactions is endothermic, meaning the activation energy leads to a net absorption of heat from the surroundings?

Which of the following exothermic reactions is most likely to have the greatest activation energy?