Which of the following solutions should be added to a solution containing both copper(ii) ions and silver(i) ions in order to precipitate only one of the ions? a. h2s(aq) + hno3(aq) b. hno3(aq) c. h2s(aq) + hcl(aq) d. hcl(aq) e. h2s(aq)

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 common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2