(A) PbSO 4
(B) KNO 3
(C) K 2 Pb
(D) NO 2
(E) SO 3
27 . Which of the following can be classified as a strong electrolyte?
(A) Br 2
(B) C 6 H 12 O 6
(C) CaCl 2
(D) H 2 O
(E) NO 3
28 . How many grams of potassium chloride, KCl, must be added to make 500 mL of 1.00 M KCl
solution?
(A) 1.00 g
(B) 18.6 g
(C) 37.3 g
(D) 74.5 g
(E) 149 g
29 . H 2 (g) + Cl 2 (g) → 2 HCl (g)
The above reaction is classified as a
(A) decomposition
(B) double displacement
(C) neutralization
(D) oxidation-reduction
(E) single displacement