What makes carcinogens so dangerous? a. they can be used to make weapons. b. they are extremely toxic to the environment. c. they cause cancer. d. they are highly explosive.

option C. they cause cancer.

Justification:

1) The word carcinogen is a medical term and means tha can cause cancer. You can find it in a dictionary. The termination - gen means something that produces (generate) so, carcinogen = cancer + produce.

2) It is used for any substance that produces or can (potentiallyI produce cancer.

The carcinogens are supposed to cause changes in the genome, this is theyproduce an abnormal growing of the cells. Some substances classified are carcinogens are radioactive nuclei, asbestos, tobacco, among others.

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.