
4/13/22- Counting Atoms/ Physical Chemical changes
Authored by Marco Montelongo
Science
8th Grade
Used 2+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many O's are in Al₂(SO₄)₃
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Number of N in (NH₄)₂CrO₄
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of Oxygen are in Fe(NO3)3 ?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many Hydrogen atoms are there in this chemical formula Na(CH5O)2
2
10
4
6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of Chlorine (Cl) are in 2MgCl2?
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms of Sodium (Na) are in 3Na2Ca?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many Hydrogen atoms are in 4H2O?
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