Answer:
C. A catalyst lowers the activation energy of a reaction.
Explanation:
- Catalyst increases the rate of the reaction without affecting the equilibrium position.
- Catalyst increases the rate via lowering the activation energy of the reaction.
- This can occur via passing the reaction in alternative pathway (changing the mechanism).
- The activation energy is the difference in potential energies between the reactants and transition state (for the forward reaction) and it is the difference in potential energies between the products and transition state (for the reverse reaction).
- in the presence of a catalyst, the activation energy is lowered by lowering the energy of the transition state, which is the rate-determining step, catalysts reduce the required energy of activation to allow a reaction to proceed and, in the case of a reversible reaction, reach equilibrium more rapidly.
- Catalyst does not consumed during a chemical reaction.
Kindly, find the attached image.
<em>C. A catalyst lowers the activation energy of a reaction.</em>
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The time for the reaction will keep increasing as water levels increase.
<h3>Concentration and rate of reactions</h3>
Concentration is one of the factors that affect the rate of reactions. It affects both reversible and irreversible reactions.
An increase in the concentration of reactants increases the rate at which products are formed from reactions. A decrease in the concentration of reactants, on the other hand, decreases the rate of reactions.
From the table, the concentration of sodium thiosulfate keeps decreasing downward. This is because the volume of water being added kept increasing.
Thus, the time taken for the reactions will keep increasing as we move downward on the table.
More on concentration and rate of reactions can be found here: brainly.com/question/22012459
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Answer:
Option C
Explanation:
The answer to this question will be the third option "It is bendable." Malleable means to be able to change the shape of a object without damaging or breaking it. In this case a malleable solid would be for example drainage pipes. These pipes have curves and different shapes but still remain its product of a metal.
Hope this helps!