You are provided with following materials: Candle, Gold, Diamond, Paper, Jute bag, Steel, Sand paper. Out of these, how many substances fall in the category of Dull materials?

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.