Which of the following best describes spectator ions? A. lons that combine to form a precipitate
B. lons that are made of a single element
C. lons that do not participate in the reaction
D. Ions made when compounds dissolve in water

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Particles vibrate in a rigid structure and do not move relative to their neighbors.