Which of these has the lowest first-ionization energy? A) Cs
B) Ag
C) Pb
D) Br
E) Se

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.

In salt water solution, the salt is the blank

Which is an example of a reversible physical change?