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how many molecules of ammonia can be created when four molecules of nitrogen are combined with four molecules of hydrogen? include a drawing of the molecules in your answer.

The number of molecules of ammonia formed are:

Explanation:

The number of Nitrogen molecules is 4.

The number of Hydrogen molecules is 4.

The balanced chemical equation for formation of ammonia is:

According to the above equation, 3 molecules of require one molecule of .

So, 4 molecules of    will require   molecules of .

Hydrogen, acts as a limiting reagent. This means that the number of ammonia molecules produced depends only on the number of hydrogen molecules.

Therefore, for 4 molecules of Hydrogen, the number of ammonia molecules produced is  .

The diagram of the ammonia molecule can be obtained from this link:

https://upload.wikimedia.org/wikipedia/commons/7/75/Ammonia-2D.svg

the answers would be

the first one and the second one

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.