Questions 20–23
What happens when the following are dissolved in water?
17 . The energy of a system available to do work
18 . Heat required to raise one unit mass of a substance by 1 degree Celsius
19 . Heat absorbed or released during production of a substance from elements in their
standard states
(A) NaOH
(B) CsCl
(C) HBr
(D) CH 3 COOH
(E) O 2
20 . Forms a strong base
21 . Forms a weak acid
22 . Forms a strong acid
23 . Forms an ionic solution with a neutral pH