N2+3h2=2nh3 how many grams of hydrogen must react if the reaction producesd 27 grams of nh3

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4.765 grams

Explanation:-

Molecular weight of Hydrogen gas H2 = 1 x 2 = 2 gram

Molecular weight of NH3 = 14 x 1 + 1 x 3 = 17 gram

The balanced chemical equation for the reaction is

N2 + 3 H2 --> 2 NH3

From the chemical equation we see

To produce 2 NH3 we need 3 H2 to react.

∴ To produce 2 x 17 grams of NH3 we need 3 x 2 grams of H2 to react.

To produce 27 grams of NH3 we need (3 x 2) x 27 / (2 x 17) grams of H2 to react

=4.765 grams of H2 to react

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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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