1. How many moles of hydrogen are needed to completely react with two moles of nitrogen? _N2 + _H2 -->_NH3
Please hurry it is for a big assignment

N2 + 3H2  -->  2NH3

6 moles of hydrogen are needed to react with two moles of nitrogen.

Explanation:

i can ! i just need to know what the paragraph is! : p

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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