1. A certain number of identical glass marbles has a mass of 825 g. The same number of identical steel marbles has a
mass of 2245 g.
(a) Assigning a glass marble a mass of 1.00 mmu (marble
mass unit), calculate the mass of a single steel marble.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

The same side of the moon always faces earth because the

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.