N2(g) + 3H2(g) -> 2NH 3(g)

Calculate the mass in g of Ammonia (NH3) if you react 4.95 mol of hydrogen (H2) with excess nitrogen.

a.) 17.04 g
b.) 84.4 g
c.) 56.2 g
d.) 85.2 g

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

How have the greenhouse gasses increased from the year 2000 to 2018