It takes 498./kJmol to break an oxygen-oxygen double bond. Calculate the maximum wavelength of light for which an oxygen-oxygen double bond could be broken by absorbing a single photon. Be sure your answer has the correct number of significant digits.

Idon’t know how to solve this question

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Classify this reaction: 2al+n2-> aln.