If 42.5 g n2 react with 10.1 g h2 according to the reaction below, how many grams of ammonia (nh3) can be produced, and how many grams of the excess reactant will be left over? (5 points) unbalanced equation: n2 + h2 → nh3 be sure to show all of your work.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What are the similarities of physical and chemical change ?

Element before carbon on the periodic table