dùng các phản ứng hóa học để chứng minh hoạt động công nghiệp đã tạo ra các chất làm ảnh hưởng đến bầu khí quyển

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.