Chemical Reactions Quiz
Authored by Debra Kollitz
Science
9th Grade
NGSS covered
Used 12+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical equation, "dissolved in water" is represented by which of the following symbols?
(s)
(l)
(g)
(aq)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two students conduct several tests to determine the identity of an unknown metal. They noted that it was powdery white, conducted both heat and electricity, and had a density of 10.49 g/cm³. It did not react with water but, with nitric acid it released a gas. What evidence above supports a chemical change in this unknown?
It conducts heat.
It reacts with nitric acid to produce a gas.
It has a density of 10.49 g/cm³.
It is powdery white.
Tags
NGSS.MS-PS1-2
3.
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
4.
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
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classify the following reaction: HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l)
Double replacement
Single replacement
Decomposition
Synthesis
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To balance a chemical equation, it may be necessary to change the substances’ ___.
subscripts
superscripts
coefficients
formulas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements best describes the following reaction? MgCl₂ + I₂ → MgI₂ + Cl₂
It is a single replacement reaction.
It is a decomposition reaction.
It is a synthesis reaction.
It is a double replacement reaction.
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