
Counting Atoms: A Deep Dive

Interactive Video
•
Science
•
6th - 8th Grade
•
Medium
Standards-aligned

Lucas Foster
Used 3+ times
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a coefficient in a chemical formula indicate?
The total weight of the compound
The number of atoms in each element
The charge of the compound
The number of molecules of the compound
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If there is no subscript written for an element in a compound, how many atoms of that element are present?
It varies depending on the element
Two
One
Zero
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the subscript in a chemical formula represent?
The number of protons
The number of molecules
The ionic charge of the element
The number of atoms of the element it follows
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the compound Na2O, how many oxygen atoms are present?
Four
Two
Three
One
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the compound Ba(NO3)2, how many nitrogen atoms are there?
Four
Two
One
Three
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the formula Ba(NO3)2, how many oxygen atoms are present?
Three
Nine
Six
Twelve
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the compound Al4Cl3, how many chlorine atoms are present?
Twelve
Four
Sixteen
Three
Tags
NGSS.MS-PS1-1
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