Scientists are working with a liquid that is made of only one type of atom. Which statements correctly describe this liquid? Select two options.
The liquid contains only one compound.
The liquid contains only one element.
The liquid contains only neutral electrons.
The liquid is a pure substance.
The liquid can be broken down into simpler substances.
The liquid must have equal numbers of neutrons and protons.

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.