What process releases the chemical energy stored in food

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

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.