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3 years ago

Difine an exothermic reaction

Chemistry

2 answers:

Vika [28.1K]3 years ago

4 0

Answer:

An exothermic reaction is a chemical reaction in which less energy is needed to break bonds in the reactants than is released when new bonds form in the products. During an exothermic reaction, energy is constantly given off, often in the form of heat. All combustion reactions are exothermic reactions.

Explanation:

Y_Kistochka [10]3 years ago

4 0

An exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative." Exothermic reactions usually release heat and entail the replacement of weak bonds with stronger ones.

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A 25.0 ml sample of 0.150 m benzoic acid is titrated with a 0.150 m naoh solution. what is the ph at the equivalence point? the

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Solution:

At the equivalence point, moles NaOH = moles benzoic acid

HA + NaOH ==> NaA + H2O where HA is benzoic acid

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