As a result of excessive vomiting, people with bulimia nervosa often have low
a. vitamin a levels
b. niacin levels
c. chloride levels
d. calcium levels

Bulimia nervosa is a disorder which is a critical eating imbalance and can be life threatening in some cases.

The suffered person eat huge amount of uncontrolled food and then try to balanced the high intake by excessive vomiting (generally).

Due to excessive vomiting there can be a loss of mineral in the human body.

it may lead to Hypokalemia and hypochloremia

Hypokalemia is low level of potassium

hypochloremia  is low level of chloride

Thus answer is people with bulimia nervosa often have low chloride level.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2