Answer:
The Best Answer would be B but the correct answer is A+B --> AB
Explanation:
The answer is d. particles move from an area of high concentration to low concentration.
Following the law of conservation of mass, the mass percent of hydrogen in the resulting compound is 14.4%(wt/wt). This is assuming that all of the carbon reacts with all of the hydrogen. The solution is as follows:
mass % = mass hydrogen*100/total mass = 28.8*100/(28.8+171.2) = 14.4%
Option B. Humus. Its dark color is due to the high content of carbon.
