Why do we store food in the refrigerator?

Factors Affecting Reaction Rates

Interactive Video
•
Chemistry, Science
•
7th - 10th Grade
•
Hard

Amelia Wright
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To increase the temperature
To change the taste of the food
To slow down chemical reactions
To speed up chemical reactions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you cut food into smaller pieces before cooking?
It cooks more slowly
It cooks at the same rate
It cooks more quickly
It doesn't cook at all
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing the surface area of a reactant affect the reaction rate?
It stops the reaction
It decreases the reaction rate
It has no effect on the reaction rate
It increases the reaction rate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a steel wool rust faster than a nail?
Because it is heavier
Because it has a larger surface area
Because it is made of a different material
Because it is exposed to less oxygen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of increasing temperature on the reaction rate?
It stops the reaction
It decreases the reaction rate
It has no effect on the reaction rate
It increases the reaction rate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we use a pressure cooker to cook food faster?
It changes the taste of the food
It decreases the pressure
It increases the temperature
It decreases the temperature
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the reaction rate when the concentration of reactants is increased?
It decreases
It stops
It remains the same
It increases
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