7. Use the following reaction: N +3H, 2NH, How many grams of NH, can be made from 4L of hydrogen gas and an excoss of nitrogen at STP? a. 2.02 g NH, b. 4.59 g NH, C. 1.07 g NH, d. 1.60 g NH,

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.