Addition of 1 M HBr to 0.1 M solutions of which
compound results in evolution of a colorless gas?
(A) NaHSO3 (B) NaHSO4
(C) Ce(NH4)2(NO3)6 (D) KBrO3

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a