Understanding Chemical Reactions
Authored by Rebecca Puller
Science
8th Grade
NGSS covered
Used 4+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a chemical reaction?
A process where energy is absorbed
A process where one or more substances undergo change to produce different substances
A shorthand notation for a compound
A description of a chemical reaction using symbols
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a chemical formula?
A process where substances change into different substances
A shorthand description of a chemical reaction
A shorthand notation for a compound or a molecule using chemical symbols and numbers
The starting materials in a chemical reaction
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are reactants in a chemical reaction?
The substances formed from a chemical reaction
The energy released during a reaction
The starting materials in a chemical reaction
A shorthand notation for a compound
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about an exothermic reaction?
Energy is absorbed
Energy is released or removed
Mass is created
Mass is destroyed
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the law of conservation of matter (mass) state?
Mass can be created during a chemical reaction
Mass can be destroyed during a chemical reaction
Mass remains the same before and after a chemical reaction
Energy is absorbed during a chemical reaction
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a chemical equation?
A process where energy is absorbed
A shorthand description of a chemical reaction using chemical formulas and symbols
The substances formed from a chemical reaction
The starting materials in a chemical reaction
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an endothermic reaction, what happens to energy?
Energy is released
Energy is absorbed
Energy is destroyed
Energy is created
Tags
NGSS.MS-PS3-4
NGSS.MS-PS3-5
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