Chemical Reactions Review
Authored by Christine Soares
Chemistry
10th Grade
NGSS covered
Used 4+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a sign that a chemical reaction has occurred?
change in shape
melting
formation of a gas
dissolving
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is melting butter for popcorn a chemical or physical change?
chemical
physical
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?
Texture
Temperature
Shape
Mass
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A change where one or more new substances are created.
Physical Change
Chemical Change
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of properties can only be observed when a substance changes into a different substance?
physical properties
chemical properties
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does the Law of Conservation of Mass state?
Matter cannot be gained or lost in a chemical reaction.
Matter can only be lost in a chemical reaction.
Matter can only be gained in a chemical reaction.
Matter can be gained and lost in a chemical reaction.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
Reactants
Products
Yields
Chemical Equation
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