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marissa [1.9K]
3 years ago
9

Which chemical equation correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammo

nia decomposes? (4 points) a N(g) + H3(g) → NH3(g) b 2N(g) + 3H2(g) → 2NH3(g) c 2NH3(g) → N2(g) + 2H3(g) d 2NH3(g) → N2(g) + 3H2(g)
Chemistry
1 answer:
Leviafan [203]3 years ago
4 0

Answer:

  • d. 2NH3(g)-N2(g)+3H2(g)
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The atomic mass can be defined as the mass of neutrons and protons in the atom. The atomic mass of the oxygen isotope is 18 amu.

<h3>What is an atom?</h3>

An atom is the smallest particle comprised of three subatomic units, namely electrons, protons, and neutrons.

The number of electrons in the atoms determines the atomic number, while the number of protons and neutrons determines the atomic mass.

The atomic mass can be given as:

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The oxygen isotope has been comprised of 10 neutrons and 8 protons. The atomic mass of the isotope is given as:

\rm Atomic \;mass=10+8\;amu\\Atomic\;mass=18\;amu

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When you balance a chemical equation you change coefficients.You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation you add the coefficients to make sure there are the same number of atoms on each side of the arrow.

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Hope this helps. MARK BRAINLEST!!

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