How many nitrate ions are present in .200 mol of zn(no3)2?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

What forms when chemical reactions combine pollution with sunlight?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li