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Chemistry

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Gonzalo Koch

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2y ago
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Cards in this guide (18)
What is the purpose of a catalyst

a catalyst provides a different path for a reaction to occur

To lower the activation energy of a reaction

An increase in temperature will cause the rate of a chemical reaction to

increased temperture causes rate or reaction to increase.

Which equation is an expression of the rate law

Rate = k[A]m[B]n

What does the rate law use to determine the rate of a reaction

The rate of a reaction is calculated using the concentrations of reactants.

What must be known for the rate constant to be calculated from the rate law

The reaction rate at known reactant concentrations.

What is true of a Lewis acid

A Lewis acid accepts electron pairs.

How can the rate constant be determined from the rate law

The rate constant is the reaction rate divided by the concentration terms.

What causes the reaction rate to decrease as the reaction progresses

The concentration of the reactants decreases.

What happens to the potential energy of the molecules in a reaction

The potential energy of the molecules change during a reaction.

Why does a reaction slow down with time

The reactant concentrations decrease

What information does the rate constant give from the rate law

It tells how much the reaction rate is affected by concentrations.

What is the rate constant of a reaction if rate 1 10-2 molLs A is 2 M B is 3 M m 2 and n 1

4.5 (moI/L)/s -apex

What effect do concentration changes have on the reaction rate

the rate is affected by concentrations raised to the power of an exponent

Which has the largest rate constant k

Dynamite exploding

Which if the following is an example of a bronsted-lowry acid

NH4+

The arrival of new diseases and strains of bacteria that are resistant to older drug treatments makes which step of the engineering process essential

looking for improvements

How is the effect of concentration changes on the reaction seen in the rate law

Reaction rate increase when the concentration increase.

What is a rate law

An equation that relates the reaction to the concentrations of the reactants

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