What is the charge of the nucleus of an oxygen atom? (1) 0 (2) -2 (3) +8 (4) +16

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Part of molten rock at mid-ocean ridges

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