ACT June 2010 - Science

rootbeerfloat909
Mon, 14 Jun 2010 19:47:16 +0000

Just because it said “dry air,” that does not mean it is oxygen. First of all, as an AP Chemistry student, Peroxide is a polyatomic ion (O2^-2). This has nothing to do with the question. Dry air refers to air free of water vapor; therefore, the answer is NOT H20. Moreover, the question asked for the gas that is most influential. Because air is approximately 80% diatomic nitrogen, N2 has the greatest effect. I agree with all of the other general consensus answers.