Help! This is a science check and reflect please help and answer

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 statement best describes the function of enzymes?

Consider the story you just read. all but one of the choices below indicate that something is living.