
Mastering Quick Tricks for Balancing Equations
Interactive Video
•
Science
•
6th - 10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Liam Anderson
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common issue faced when balancing combustion equations?
Balancing hydrogen atoms
Balancing carbon atoms
Balancing oxygen atoms
Balancing nitrogen atoms
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the products of a combustion reaction involving a CH or CHO compound?
Carbon monoxide and water
Carbon dioxide and water
Methane and water
Oxygen and water
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the combustion of pentane (C5H10), what are the reactants?
C5H10 and O2
C5H10 and CH4
C5H10 and CO2
C5H10 and H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first element you should balance in a combustion reaction?
Carbon
Nitrogen
Hydrogen
Oxygen
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if an element exists in multiple products or reactants?
Ignore it
Balance it last
Balance it first
Write it out separately
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When balancing hydrogen in the combustion of pentane, what coefficient is placed in front of water (H2O)?
5
3
4
2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the temporary coefficient for O2 when balancing the combustion of pentane?
9.5
8.5
7.5
6.5
Tags
NGSS.HS-PS1-7
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