PLEASE HELP ASAP *Please complete all calculations on a piece of loose leaf. Use the factor label method. BOX ANSWERS
Ammonia reacts with oxygen to form nitrogen monoxide gas and water via the following balanced reaction:
4HN, + 50, → 4NO + 6H2O
If 6.95 g of ammonia (HN,) reacts with 2.70 g of oxygen (O2), answer the following questions:
a) Identify the limiting reagent/reactant and identify what mass of water (H,) can be produced from the
reaction? (4 pts)
b) What mass of excess reagent/reactant is required for the reaction to take place? (2 pts)
c) What mass of excess reagent/reactant is left over after the reaction has gone to completion? (2 pts)

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial

Draw two cyclic constitutional isomers of cis-1