Please help ASAP! What mass of hydrogen is needed to produce 10 moles of ammonia (NH3)? N2 +
3H2 → 2NH3
30 moles
30 grams
15 grams
15 moles

Mass = 30 g

Explanation:

Given data:

Mass of hydrogen needed = ?

Number of moles of ammonia produced = 10 mol

Solution:

Chemical equation:

N₂ + 3H₂        →      2NH₃

Now we will compare the moles of ammonia and hydrogen.

                  NH₃            :                H₂

                    2               :                3

                   10               :               3/2×10 = 15 mol

Mass of hydrogen needed:

Mass = number of moles × molar mass

Mass = 15 mol × 2 g/mol

Mass = 30 g

answer: lol

explanation:

lol

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.

if it's not useful, feel free to report for mistake in answer.