In the following reaction, the product is ammonia, nh3. according to the balanced equation, how many hydrogen atoms total are in the final products?
n2 + 3h2 2nh3
a. 2
b. 3
c. 5
d. 6

D. 6

Explanation:

To balance a chemical equation, you need to have the same amount of startings and products.

Both sides of the equation must have the same amount of atoms.

To make ammonia, you need to react to N2 with H2. Both are diatomic substances.

So, if you have N2 + 3H2 = 2NH3 you star with two molecules of hydrogen. Each molecule has two atoms.

3x2=6 you have 6 atoms of Hydrogen.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

helicase, i think thats it