3 years ago

Vinegar is a solution of

Chemistry

2 answers:

cricket20 [7]3 years ago

6 0

Answer:

C. 5% - 8% acetic acid in water.

Explanation:

The vinegar we buy for the table is a weak concentration of acetic acid in water.

Law Incorporation [45]3 years ago

5 0

Answer:

Explanation:

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The activation energy for the reaction NO2 (g )+ CO (g) ⟶ NO (g) + CO2 (g) is Ea = 218 kJ/mol and the change in enthalpy for the

madreJ [45]

Answer:

$470\frac{KJ}{mol}$

Explanation:

The activation energy represents the energy barrier that reagents must pass to transform into products (or products to transform into reagents in a reverse reaction)

For any reaction, the change in enthalpy is related to the activation energy by the equation

$\Delta H =E_{a\ direct}-E_{a\ reverse}$

So, the activation energy for the reverse reaction is

$E_{a\ reverse}=E_{a\ direct}-\Delta H =218 \frac{KJ}{mol} - (-252)\frac{KJ}{mol}=470\frac{KJ}{mol}$

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Ne 2

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