Unit 5 Chemical Reactions Test
Authored by Levi Marciniak
Science
11th Grade
NGSS covered
Used 1+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of oxygen are represented in 2Pb(SO4)2?
2
4
8
16
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solid produced from two aqueous solutions in a chemical reaction is known as a(n) ____________.
precipitate
oxide
salt
hydrocarbon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classify the following reaction: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
Double replacement
Single replacement
Combustion
Decomposition
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements about the reaction below is not true? N2(g) + 3H2(g) ⇌ 2NH3(g) + energy
A. It is endothermic.
B. Overall, it releases energy.
C. It is in equilibrium.
D. It is reversible.
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To balance a chemical equation, it may be necessary to change the substances’ ____________.
subscripts
superscripts
coefficients
formulas
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements best describes the following reaction? MgCl2 + I2 → MgI2 + Cl2
It is a double replacement reaction.
It is a decomposition reaction.
It is a synthesis reaction.
The reaction will not occur.
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following would not be considered evidence of a chemical reaction?
Formation of a precipitate
Production of a gas
State of matter change
Sudden release of light
Tags
NGSS.MS-PS1-2
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