Pls help fast! I will give brainliest.

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

Which characteristics can be used to differentiate star systems? check all that apply.

Is water wet? my friends are debating.