Can someone please help me on this ty!!

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

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

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate