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SIZIF [17.4K]
3 years ago
11

In this thermochemical reaction, what does the coefficient ½ represent?

Chemistry
1 answer:
timurjin [86]3 years ago
3 0
A thermochemical reaction is a chemical reaction with an additional information of the heat of reaction. For example, this is the thermochemical reaction for the combustion of hydrogen gas:

H₂ (g) + 1/2 O₂ (g) → H₂O (l)         ΔH = -285.8 kJ

The coefficient 1/2 represents the number of moles of O₂ needed to combust 1 mole of H₂ gas in order to yield one mole of water.
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2 years ago
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Answer:

Take a cardboard, cylinder-shaped container and cut a vertical slit about 3 ½ inches long and ¼ inch wide down the side. The slit is your mid-ocean ridge, the place where the plates are moving away from each other.

Cut a piece of white paper in half lengthwise.

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Explanation:

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What must always be the same on both sides of a chemical equation?
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The number of Atoms must be the same on both sides

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