Counting Atoms
Authored by Sherri Christensen
Science
12th Grade
NGSS covered
Used 3+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are in the formula HBr?
1 H
1 Br
2 atoms
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 K
2 K
1 O
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a chemical formula represent?
The number of atoms of each element
The molecular structure
The chemical reaction
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the subscript in a chemical formula indicate?
The number of atoms of a particular element
The charge of the element
The state of matter
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be multiplied by the subscript to find the number of atoms of each element?
The coefficient
The chemical symbol
The parenthesis
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many elements are in the compound C2H8O ?
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many total atoms are in the compound C2H8O ?
Tags
NGSS.MS-PS1-1
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