What is the chemical equation being balanced in this video?

Balancing Chemical Equations Concepts

Interactive Video
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Chemistry
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9th - 10th Grade
•
Hard

Amelia Wright
FREE Resource
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2 + O2 yields H2O
HI yields I2 + H2
NaCl yields Na + Cl2
C + O2 yields CO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present on the product side initially?
One
Two
Four
Three
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the numbers in front of molecules in a chemical equation called?
Subscripts
Ratios
Coefficients
Exponents
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT allowed when balancing chemical equations?
Using a subscript of one if none is present
Changing subscripts
Changing coefficients
Counting atoms
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adjusting coefficients in a chemical equation?
To increase the reaction speed
To alter the molecular structure
To change the chemical properties
To balance the number of atoms on each side
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After balancing, how many iodine atoms are on each side of the equation?
Four
Three
One
Two
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced equation for the decomposition of HI?
2HI yields I2 + H2
H2 + I2 yields 2HI
HI yields H2 + I2
HI + I2 yields H2
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