Unit 5 Chemical Reactions Test rev 2026
Authored by Caroline Encomienda
Chemistry
9th - 12th Grade
NGSS covered
Used 4+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In this equation, which are the reactant(s)? Mg(s) + O2(g) --> MgO(s)
Mg(s)
O2(g)
Mg(s) + O2(g)
MgO(s)
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which type of chemical reaction is shown?
double replacement
combustion
synthesis
decomposition
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which is the name of the kind of solid substance formed in the picture?
aqueous
precipitate
coordinate complex
decomposition
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which type of reaction can be recognized by the general pattern
A + BX --> AX + B ?
combustion
synthesis
single replacement
decomposition
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the correct description of this reaction?
Cu(s) + 2HCl(aq) → CuCl2(aq) + H2(g)
Hydrogen gas reacts with a solution of copper chloride to produce solid copper metal in a solution of hydrochloric acid.
A solution of copper metal reacts with solid hydrochloric acid to produce a solution of copper chloride and hydrogen gas
Hydrogen gas reacts with solid copper chloride to produce solid copper metal in a solution of hydrochloric acid.
Solid copper reacts with a solution of hydrochloric acid to produce a solution of copper chloride and hydrogen gas.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of these chemical equations correctly represents the reaction: solid copper metal, Cu, reacts with a solution of silver nitrate, AgNO3, to produce a solution of copper nitrate, Cu(NO3)2, and silver metal, Ag?
2Ag(s) + Cu(NO3)2(l) → 2AgNO3(l) + Cu(s)
2Ag(s) + Cu(NO3)2(aq) → 2AgNO3(aq) + Cu(s)
2AgNO3(l) + Cu(s) → 2Ag (s) + Cu(NO3)2(l)
2AgNO3(aq) + Cu(s) → 2Ag(s) + Cu(NO3)2(aq)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When the chemical equation below is correctly balanced, what coefficient is placed in front of water?
C2H6(g) + O2(g) → CO2(g) + H2O(g)
3
4
6
12
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