1) other metals, similar to aluminum, with a higher oxide to metal ratio are:

a. iron,copper,zinc

b. potassium, nickel, chromium

c. tungsten, cobalt, titanium

d. nickel, chromium, tungsten

e. magnesium, platinum, tin

2) I am going to dissolve this chemical in water, tell me if it is stable, an oxidizing agent, or a reducing agent in water, VCl7

3) I am going to dissolve this chemical in water, tell me if it is stable, an oxidizing agent, or a reducing agent in water, SiF4

4)algae growth in rivers is:

a) promoted (increased) by phosphorus

b) decreased by phosphorous

c) promoted by an alkaloid

d) promoted by hydrogenation