How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is

C + H2O → CO + H2

The equation is balanced. The starting substance is carbon, C. The ending substance is hydrogen, H2.

Using the periodic table, find the atomic mass of C.

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.