Can someone please help me

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

50 pts plz what is the physical state of matter of baking soda.

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.