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Counting Atoms In Chemical Formulas
Test Description: Determine the number of atoms of each element in the chemical formulas listed.
Instructions: Answer all questions to get your test result.
1) Determine the number of Lithium (Li) atoms are in the following chemical formula: Li2SO4
A
3
B
2
C
1
D
4
2) Determine the number of Hydrogen (H) atoms are in the following chemical formula: 3 H2O
A
6
B
3
C
4
D
2
3) Determine the number of Aluminum (Al) atoms are in the following chemical formula: 4 Al2(SO3)3
A
2
B
18
C
4
D
8
4) Determine the number of Sulfur (S) atoms are in the following chemical formula: 4 Al2(SO3)3
A
1
B
36
C
3
D
12
5) Determine the number of Carbon (C) atoms are in the following chemical formula: NaC2H3O2
A
3
B
4
C
2
D
1
6) Determine the number of Hydrogen (H) atoms are in the following chemical formula: NaC2H3O2
A
4
B
2
C
1
D
3
7) Determine the number of Oxygen (O) atoms are in the following chemical formula: 2 (NH4)3PO4
A
8
B
4
C
12
D
14
8) Determine the number of Hydrogen (H) atoms are in the following chemical formula: 2 (NH4)3PO4
A
24
B
3
C
10
D
1
9) Determine the number of Zinc (Zn) atoms are in the following chemical formula: 5 ZnSO4
A
1
B
20
C
10
D
5
10) Determine the number of Barium (Ba) atoms are in the following chemical formula: Ba3(PO4)2
A
1
B
3
C
2
D
4
11) Determine the number of Oxygen (O) atoms are in the following chemical formula: Ba3(PO4)2
A
24
B
4
C
25
D
8
12) Determine the number of Chlorine (Cl) atoms are in the following chemical formula: 3 CaCl2
A
9
B
2
C
6
D
1
13) Determine the number of Nitrogen atoms are in the following chemical formula: NH4C2H3O2
A
4
B
3
C
1
D
2
14) Determine the number of Carbon (C) atoms are in the following chemical formula: 4 Al2(CO3)3
A
3
B
24
C
1
D
12
15) Determine the number of Lead (Pb) atoms are in the following chemical formula: Pb(NO3)2
A
3
B
1
C
2
D
6
16) Determine the number of Oxygen (O) atoms are in the following chemical formula: Pb(NO3)2
A
3
B
6
C
2
D
12
17) Determine the number of Oxygen (O) atoms are in the following chemical formula: 2 (NH4)2Cr2O7
A
21
B
28
C
7
D
14
18) Determine the number of Hydrogen (H) atoms are in the following chemical formula: 2 H2O2
A
4
B
2
C
6
D
8
19) Determine the number of Hydrogen (H) atoms are in the following chemical formula: NH4C2H3O2
A
8
B
2
C
6
D
7
20) Determine the number of Sodium (Na) atoms are in the following chemical formula: NaCl
A
3
B
4
C
1
D
2
*select an answer for all questions
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