Answer:
Details are below
Explanation:
A Compound is made of number of atom of element, that have a specific ratio.
Below are the details of elements and the number of its atoms:
1) NaOH
Element : #of atoms
Na 1
O 1
H 1
__________________
Total 3
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2) HNO₃
Element : #of atoms
H 1
N 1
O 3
___________________
Total 4
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3) Li₂O
Element : #of atoms
Li 2
O 1
__________________
Total 3
------------------------------------
4) Li₂SO₄
Element : #of atoms
Li 2
S 1
O 4
____________________
Total 7
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5) NH₄Cl
Element : #of atoms
N 1
Cl 1
H 4
____________________
Total 6
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6) CaClO₃
Element : #of atoms
Ca 1
Cl 1
O 3
____________________
Total 5
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7) H₂COCH₂
Element : #of atoms
C 2
H 4
O 1
____________________
Total 7
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8) Mg(OH)₂
Element : #of atoms
Mg 1
H 2
O 2
____________________
Total 5
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9) Al(OH)₃
Element : #of atoms
Al 1
H 3
O 3
____________________
Total 7
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10) NH₄C₂H₃O₂
Element : #of atoms
N 1
H 7
C 2
O 2
____________________
Total 12
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11) NaC₂H₃O₂
Element : #of atoms
Na 1
H 3
C 2
O 2
____________________
Total 8
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12) (NH₄)₃ PO₄
Element : #of atoms
N 3
H 12
P 1
O 4
____________________
Total 20
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