Counting Atoms
7th Grade
•10 Qs
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Counting Atoms
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
Standards-aligned
Tammi Sue Terry
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms are there in the equation H2O?
2
3
4
1
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of atoms in the equation 2H2 + O2 → 2H2O?
6
8
4
2
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation CH4 + 2O2 → CO2 + 2H2O, how many atoms of carbon are there?
2
4
3
1
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of oxygen are there in the equation 4Fe + 3O2 → 2Fe2O3?
6
10
8
4
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of atoms in the equation 2NaCl + H2SO4 → 2HCl + Na2SO4?
12
9
7
10
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation 2C6H12O6 → 4C2H5OH + 4CO2, how many atoms of hydrogen are there?
12
8
24
16
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of nitrogen are there in the equation 2NH3 + 3O2 → 2NO + 3H2O?
2
8
6
4
Tags
NGSS.MS-PS1-1
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