Decoding Chemical Formulas
Interactive Video
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Olivia Brooks
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for water?
NO2
CO2
H2O
SO4
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is represented by 'H' in chemical formulas?
Holmium
Hafnium
Hydrogen
Helium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are present in sulfuric acid (H2SO4)?
One
Two
Four
Three
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the subscript '4' in the formula H2SO4 represent?
Four sulfur atoms
Four molecules
Four oxygen atoms
Four hydrogen atoms
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the subscript outside the parentheses indicate in a chemical formula?
Number of groups
Number of molecules
Number of electrons
Number of bonds
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do parentheses play in chemical formulas like C7H5(NO2)3?
None of the above
Group certain elements together
Indicate charge
Separate different molecules
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the formula Mg3(P4)2, how many phosphorus atoms are present?
Two
Four
Eight
Six
Tags
NGSS.MS-PS1-1
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