Question

question 9 (2.5 points)
the nucleus of an atom contains

protons only
electrons only
neutrons only
protons and neutrons
protons and electrons

question 10 (2.5 points)
fats will dissolve in ethanol. ethanol is an example of a

solute
solution
solvent
salt
ion

Explanation:

For Question 9, in atomic structure, the nucleus of an atom consists of protons and neutrons. Electrons orbit around the nucleus.
For Question 10, a solvent is a substance that dissolves a solute to form a solution. Since fats dissolve in ethanol, ethanol is a solvent.

Answer:

Question 9: protons and neutrons
Question 10: solvent