Hoping for one less opponent at dawn i watch the sky. which sentence below correctly uses a comma to mark the end of the introductory phrase? question 5 options: hoping for one less opponent, at dawn i watch the sky. hoping for one less opponent at dawn, i watch the sky. hoping for one less, opponent at dawn i watch the sky. the sentence is correct as is.

Hoping for one less opponent at dawn, I watch the sky.

Explanation:

The comma is used like that since the sentence is separated since it is a complex sentence.

Complex sentence contain one dependent and one independent sentence.

Dependent - Hoping for one less opponent at dawn

Independent - I watch the sky (I is the subject while watch is the verb)

Combine them with a comma to make,

"Hoping for one less opponent at dawn, I watch the sky."

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.