Chemical Reaction and Balancing Equations
Authored by Charles Martinez
Chemistry
KG - University
NGSS covered
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34 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the problem: Al + S --> Al2S3
Al + 2S --> 2Al2S3
2Al + 3S --> Al2S3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a reactant?
The chemical substances that begin the reaction.
What comes from the reaction.
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this equation balanced?: CS2 + 202 --> CO2 +2SO2
Yes
No
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a coefficient?
The small number on the right of the chemical symbol.
The large number to the left of a formula.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a product?
What's left of the chemical reaction.
The beginning formulas.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mg + ___ HCl → MgCl2 + H2
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
PCl5 + ___ H2O → ___ HCl + H3PO4
4, 5
1, 6
3, 8
2,2
Tags
NGSS.HS-PS1-2
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