Chemical Reactions Pretest
Authored by Yaounde Tanner
Science
11th Grade
NGSS covered
Used 3+ times
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37 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of these would be evidence that a chemical reaction has occurred?
Bubbles formed from heating the substance.
A color change due to red food coloring being added to the reaction.
An odor is detected that wasn't present before the reaction.
A temperature change because the reaction was heated.
Tags
NGSS.MS-PS1-2
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
In this reaction, which substances are the reactants? Check all that apply.
CH4 + 2O2 → CO2 + 2H2O
CH4
O2
CO2
H2O
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which is the name of the kind of solid substance formed in this figure?
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What reaction has the following general formula:
AB --> A + B
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This type of chemical reaction has one reactant that breaks down into two or more products.
Decomposition
Synthesis
Single Replacement
Double Replacement
Combustion
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
what is an ionic compound?
an example of atoms
held together by the transferring of electrons
do not form molecules but instead are called formula units
the forming of an atom combined with a molecule
an electron combined with an atom to make a compound
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the atomic mass?
4.0026
2
He
Helium
Tags
NGSS.MS-PS1-1
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