Question

which of these substances is a compound?
chlorine
uranium
nitrogen
water
question 18
2 pts
is water an example of a solute or solvent?
solvent
solute

Explanation:

First Question (Which of these substances is a compound?)

A compound is a substance made of two or more different elements chemically bonded. Chlorine ($Cl_2$), Uranium (U), and Nitrogen ($N_2$) are elements (or diatomic elements). Water ($H_2O$) is made of hydrogen and oxygen atoms bonded, so it's a compound.

A solvent is a substance that dissolves a solute. Water is a universal solvent, dissolving many substances (like salt, sugar) which are solutes. So water acts as a solvent.

Answer:

Water (the option "Water")

Second Question (Is water an example of a solute or solvent?)