Rate of Reactions

What happens to the rate of a reaction when the temperature increases?

• The reaction rate slows down because the molecules are moving faster.

• The reaction rate slows down because the molecules are moving slower.

• The reaction rate goes faster because the molecules are moving faster.

• The reaction rate goes faster because the molecules are moving slower.

Tags

NGSS.HS-PS1-5

Which factors increase the rate of a reaction.

• increasing temperature

• increasing concentration

• increasing surface area

• all of these

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NGSS.HS-PS1-5

NGSS.HS-PS1-6

Which factors affect the rate of a reaction?

SELECT ALL THAT APPLY.

• temperature

• concentration

• surface area

• pressure

• catalyst

Tags

NGSS.HS-PS1-5

In a chemical reaction, if the reactants are heated, the reaction usually happens

• Faster

• Slower

• At the same rate

• In a smaller volume

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NGSS.HS-PS1-5

If the concentration of a reactant is increased, what is the effect on the rate of reaction?

• The rate of reaction decreases.

• The rate of reaction increases.

• The rate of reaction remains unchanged.

• The reaction stops.

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NGSS.HS-PS1-5

NGSS.HS-PS1-6

which factor that affect reaction rate is represented?

• Temperature

• Catalyst

• Surface Area

• Concentration

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NGSS.HS-PS1-5

What effect does increasing the concentration of reactants have on the rate of reaction?

• It decreases the rate of reaction.

• It has no effect on the rate of reaction.

• It increases the rate of reaction.

• It stops the reaction.

Tags

NGSS.HS-PS1-5

Which of the following factors does NOT affect the rate of a chemical reaction?

• Temperature

• Concentration of reactants

• Color of reactants

• Surface area of reactants

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NGSS.HS-PS1-5

How does increasing the temperature generally affect the rate of a chemical reaction?

• It decreases the reaction rate.

• It has no effect on the reaction rate.

• It increases the reaction rate.

• It stops the reaction.

Tags

NGSS.HS-PS1-5

In standard conditions data for line B was recorded. If we run the reaction again with reactants at lower concentrations, which line of data would likely be recorded?

• A

• B, again

• C

• No reaction occurs

Tags

NGSS.HS-PS1-5