What is the correct clases for this drugs
Promethazine

heelp me please

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver