A substance made up of only atoms of one type is called a

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.

What is the density, d, of a substance with a volume of v = 12.5 cm3 and a mass of m = 74.4 g ?