Unit 9 Test: Reactions
Authored by Lindsey Cronic
Science
9th - 12th Grade
NGSS covered
Used 4+ times
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38 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the substances on the left side of a chemical equation that are being changed?
Reactants
Products
Coefficients
Subscripts
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a(n) _____ reaction, energy is absorbed as heat from the surroundings
Exothermic
Exergonic
Endothermic
Endergonic
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical equation, _____ are changed to balance the reaction.
Subscripts
Coefficients
Reactants
Products
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following means dissolved in water?
Solid (s)
Liquid (l)
Gas (g)
Aqueous (aq)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a balanced equation, the total mass of the reactants must equal the total mass of the products, according to the...
Law of Conservation of Energy
Law of Conservation of Mass
Law of Conservation of Equations
Law of Conservation of Momentum
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance: ___H2O 🡪 ___H2 + ___O2
1, 2, 2
2, 1, 1
2, 2, 1
Already balanced
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance: ___Pb(OH)2 + ___HCl 🡪 ___H2O + ___PbCl2
2, 4, 4, 2
2, 2, 2, 1
1, 2, 1, 1
1, 2, 2, 1
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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