Foods are a solid we need to survive
I think it is b because they travel per minute
Answer:
The answer is "Option B".
Explanation:
The ammonia gas, having a lower molecular weight than the hydrogen chloride, will diffuse faster and travel a greater length of the tube. Consequently, the white ring of ammonium chloride will form much closer to hydrochloric acid end of the tube. Which in conclusion your answer will be D :)