5deep water forms in the ocean when
a. cold air decreases water density.
b. warm air increases water density.
c. rain falls into the ocean.
d. salinity increases.

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.