How does hand sanitizer work?

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

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