How many resonance structures does nh3 have?
i believe that there are none, but i would like some

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.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments