The concept of resonance is required for certain molecules because the localized electron model assumes electrons are located between a given pair of atoms in a molecule.

7 0

3 years ago

Which is not true regarding reaction rates? (2 points)

PtichkaEL [24]

Let us consider each statement one by one

a) Catalysts are the substance which alter the reaction pathway where activation energy of reaction is less that the un catalyzed reaction. They are not used up in the reaction . the catalyst is restored in the reaction.

b) As mentioned above, the catalyst speed up reaction by lowering the activation energy

c) During a reaction the reactants are consumed up and products are formed. so there is a decrease in concentration of reactant.

Thus all the above statements are true.

D) the rate of decrease in concentration of reactants depends upon the coefficient of reactant in balanced chemical reaction.

For example

$H_{2} (g) + \frac{1}{2} O_{2} (g) --> H_{2}O(g)$

Here the rate of decrease in concentration of hydrogen will be double the rate of decrease in concentration of oxygen.

5 0

3 years ago

Which of the following graphs represent a function that has a negative leading coefficent? ;w;

MAVERICK [17]

Negative leading coefficient is A

5 0

2 years ago

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