Multiple Choice
When CaO(s) is dissolved in water,which of the following is true?
A) The solution contains O2-(aq) ,OH-(aq) ,and Ca2+(aq) .
B) The solution contains CaO(aq) .
C) CaO(s) does not dissolve in water.
D) The solution contains O2-(aq) and Ca2+(aq) .
E) The solution contains OH-(aq) and Ca2+(aq) .
Correct Answer:

Verified
Correct Answer:
Verified
Q7: The following 0.1 M aqueous solutions are
Q8: Of the following,which is the strongest acid?<br>A)CH<sub>3</sub>COOH
Q9: For a solution labeled "0.10 M H<sub>3</sub>PO<sub>4</sub>(aq),"<br>A)[H<sub>2</sub>PO<sub>4</sub><sup>-</sup>]
Q13: The K<sub>a</sub> of phenol is 1.3 *
Q14: The amino acid alanine,HOOC-CH(CH<sub>3</sub>)NH<sub>3</sub><sup>+</sup>,has K<sub>a1</sub> =
Q45: In a solution labeled "0.0018 M barium
Q98: What is the conjugate base of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>
Q112: Which of the following is the weakest
Q164: Write the autoprotolysis reaction for liquid ammonia.
Q175: The pH of 0.010 M aniline(aq) is