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Rainbow [258]
3 years ago
12

What subatomic particle has negligible mass and travels around outside the nucleus?

Chemistry
1 answer:
Ostrovityanka [42]3 years ago
5 0
That would just so happen to be the electron
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Answer:

C

Explanation:

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Explanation:

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Use the information provided to determine ΔH°rxn for the following reaction: ΔH°f (kJ/mol) 3 Fe2O3(s) + CO(g) → 2 Fe3O4(s) + CO2
zepelin [54]

Answer:

ΔH°rxn = -47 kJ

Explanation:

Using Hess´s law for the reaction:

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the ΔH°rxn will be given by the expression:

ΔH°rxn kJ  =   2ΔHºf(Fe3O4)  + ΔHºf(CO2)   - ( 3ΔHºf(Fe2O3) + ΔHºf(CO) )

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