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aniked [119]
3 years ago
7

the elements helium (he), neon (ne), and xenon (xe) are all part of the same on the periodic table plz answer correctly gets a b

rainlyist and a thanks
Chemistry
2 answers:
Ber [7]3 years ago
6 0
They are all noble gasses 
bagirrra123 [75]3 years ago
3 0
Noble gas. Noble gas, any of the seven chemical elements<span> that make up Group 18 (VIIIa) of the </span>periodic table<span>. The </span>elements<span> are </span>helium<span> (</span>He<span>), </span>neon<span> (</span>Ne<span>), argon (Ar), krypton (Kr), </span>xenon<span> (</span>Xe<span>), radon (Rn), and oganesson (Og)</span>
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2 years ago
If 20 grams of N2 react completely with H2 , how many moles of NH3 are produced? Show Work
Maslowich
This is the balanced eq
N2 + 3H2 -> 2NH3
first you need to find mole of N2 by using
mol = mass ÷ molar mass.
mol N2= 20g ÷ (14.01×2)g/mol
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then look at the coefficient between H2 and NH3.
it is N2:NH3
1:2
0.7138:0.7138×2
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3 years ago
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3 years ago
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