Which types of matter are made of atoms? ( i know this sounds obvious but my brain is going mush right about now ! )

a. solids only
b. solids and liquids only
c. plasma only
d. solids, liquids, gases and plasma

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.

The arrangement of particles is most ordered in a sample of

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years