From the average molar mass value you determined in Question 10, and assuming that air contains only molecular nitrogen and molecular oxygen gases, calculate the mass % of N2 in air.

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

i think it is true since you can test the answer and can use observations to complete it.

what does the table look like