Guy help please! Will give BRAINLIEST! A sample of nitrogen gas has a volume of 1.75L at STP. How many moles of N2 are present?

At STP, 1 mole = 22.4 litres

Now, at STP 22.4 litres N2 gas = 1 mole

Therefore, 1.75 litres N2 gas = 1.75/22.4 = 0.078125 moles

Explanation:

here is your answer

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

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explanation: