Speed Up a Chemical Reaction

Speed Up a Chemical Reaction

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a catalyst?

Back

A substance that speeds up a chemical reaction without being consumed in the process.

2.

FLASHCARD QUESTION

Front

How does a catalyst speed up a reaction?

Back

By orienting the molecules correctly so they can interact more effectively.

3.

FLASHCARD QUESTION

Front

What are the two conditions necessary for a chemical reaction to occur?

Back

1. Collisions with the proper orientation. 2. Sufficient activation energy.

4.

FLASHCARD QUESTION

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

5.

FLASHCARD QUESTION

Front

What happens when you increase the temperature of a reaction?

Back

The particles move faster, increasing the chances of collisions and speeding up the reaction.

6.

FLASHCARD QUESTION

Front

What is the effect of decreasing the volume of a reaction container?

Back

It increases the concentration of reactants, leading to more frequent collisions.

7.

FLASHCARD QUESTION

Front

What is the relationship between concentration and reaction rate?

Back

Higher concentration of reactants generally leads to a faster reaction rate.

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