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Naddika [18.5K]
2 years ago
14

What is known about a reaction with a positive enthalpy?

Chemistry
1 answer:
MariettaO [177]2 years ago
8 0

Answer: C

Explanation:

In endothermic reactions, enthalpy is positive, and in exothermic reactions, enthalpy is negative, So, if enthalpy is positive, then it is an endothermic reaction, and hence is required for the reaction to occur.

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A solution has a [H3O+] of 1x 10-5 M. What is the [OH-] of the solution? (5 points)
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Answer:

1x10^–9 M

Explanation:

From the question given,

Concentration of hydronium ion, [H3O+] = 1x10^-5 M.

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