An ion of magnesium has 12 protons and a charge of +2. how many electrons are in this ion? a. 2 b. 20 c. 12 d. 14

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

Which property of water causes water drops to bead on a freshly waxed car?

What is the rate law for the uncatalyzed reaction?