Physical Science Unit 10 - Chemical Reactions (Practice)
Authored by Michael Clifford
Chemistry
8th - 10th Grade
NGSS covered
Used 93+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The energy required to start a chemical reaction is _____________________.
Activation Energy
Products
Reactants
Enzymes
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_______________ can speed up the rate of reactions and/or lower the amount of energy needed for the reaction to take place.
Carbohydrates
Fuel source
Chemical
Catalyst
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Enzymes (biological catalysts) work by lowering the _______________ of chemical reactions.
products
solutes
activation energy
reactants
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical reactions that release energy are known as ________________________.
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical reactions that absorb energy are known as ________________________.
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a chemical equation, the substances on the right side of the arrow are called...
reactants
products
catalysts
inhibitors
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The substances on the left side of the arrow are...
Tags
NGSS.HS-PS1-7
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