1. Arrange the given metals from least reactive to most reactive. Zn, Sn, Ag, Na, Ca A) Sn B) Ag C) Ag D) Zn
2. Which one of the following metals is more reactive than hydrogen?
A) Ag
B) Au
C) Pb
D) Hg
E) None of these

Smog is the term used to describe the combination of fog and smoke

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

What are transitions between a liquid and a solid called? identify which way they are transitioning