Peut-on être exact sans être précis?
1 answer:
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Answer:
The answer is ""
Explanation:
When is added in the chemical equation it reacts with sodium acetate so, it will give the following chemical equation:
In this, the is a weak acid so, it not completely dissociated.
were strong electrolytes they are completely dissociated.
The is a strong acid so, it is completely dissociated So, the net ionic equation is:
Answer: Option (b) is the correct answer.
Explanation:
In a chemical reaction, the bonds between the reactant molecules tend to break leading to the formation of new bonds to produce products.
So, in order to break the bonds between the reactant molecules, energy is required to overcome the attraction between the atoms.
To form new bonds, energy gets released when two atoms come closer to each other. Hence, formation of bond releases energy.
As in the given reaction it is shown that < 0, that is, enthalpy change is negative. Hence, energy is released as it is an exothermic process.
Thus, we can conclude that the statement energy released as the bonds in the reactants is broken is greater than the energy absorbed as the bonds in the products are formed, is true about the bond energies in this reaction.