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Mama L [17]
3 years ago
6

What is the coefficient in a chemical equation

Chemistry
2 answers:
GarryVolchara [31]3 years ago
8 0
A coefficient is the number or letter before the variable. The variable is the unknown value.
Savatey [412]3 years ago
4 0
In a chemical equation, the coefficient means the moles of the molecule.

For example:2H2O means 2 moles of H2O
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Answer:

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First, we need to determine the energy of the reaction.

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Change of Enthalpy,

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Hreaction = 590kJ/mol - 581kJ/mol.

Hreaction = 9kJ/mol.

Hence, since the reaction has an enthalpy change of 9kJ/mol, the reaction is endothermic (i.e energy is absorbed).

Explanation:

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