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Counting Atoms
Test Description: Counting Atoms Practice- Unit 3
Instructions: Answer all questions to get your test result.
1) How many total atoms are in 2NaCl?
A
2
B
3
C
4
D
8
2) How many Oxygen atoms are in Ba(OH)2
A
1
B
2
C
3
D
4
3) How many Copper atoms are in 3Cu(NO3)2?
A
1
B
6
C
9
D
3
4) How many Iron atoms are in Fe(NO3)3?
A
4
B
2
C
1
D
3
5) How many Carbon atoms are in Pb(C2H5)4?
A
4
B
8
C
2
D
6
6) How many Hydrogen atoms are in (NH4)2SO4?
A
16
B
4
C
2
D
8
7) How many Potassium atoms are in KNO3?
A
2
B
1
C
0
D
3
8) How many elements are in 2KMnO4?
A
3
B
4
C
1
D
2
9) How many total atoms are in Ca(AlO2)2?
A
6
B
10
C
2
D
7
10) How many Hydrogen atoms are in 2(NH4)2Se
A
4
B
8
C
16
D
2
*select an answer for all questions
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