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Chemistry

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Lou Altenwerth

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2y ago
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Cards in this guide (17)
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

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.

Which of the following best describes a neutralization reaction

Answer this question… Which of the following best describes a neutralization reaction? A. Acid + base H+ + OH- B. Acid + base salt + water C. Acid + base metal + nonmetal D. Acid + base H2O + H3O+

What is true of a Lewis acid

A Lewis acid accepts electron pairs.

What causes pressure changes of reactants to affect the reaction rate

The frequency of collisions is changed.

Which of the following acts as a catalyst in catalytic converters

Metal

How can the rate constant be determined from the rate law

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

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

The potential energy of the molecules change during a reaction.

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

The exponents determine how much concentration changes affect the reaction rate

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.

Which has the largest rate constant k

Dynamite exploding

What is the rate of a reaction that follows the rate law rate kAmBn if k 0.02 A and B are each 3 M m 2 and n 3

0.54 (mol/L)/s

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

which of the following is an example of an Arrhenius acid

HI

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