Which describes any compound that has at least one element from group 17?

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.