11) pb(no₃)₂ # of molecules: # of elements: name of element # of atoms: total # of atoms: the #3 is a…
11) pb(no₃)₂ # of molecules: # of elements: name of element # of atoms: total # of atoms: the #3 is a (coefficient or subscript) 12) 4au(io₃)₃ # of molecules: # of elements: name of element: # of atoms: total # of atoms: the #4 is a (coefficient or subscript) 13) co₂ # of molecules: # of elements: name of element: # of atoms: total # of atoms: the #2 is a (coefficient or subscript) 14) 3cacl₂ # of molecules: # of elements: name of element: # of atoms: total # of atoms: the #3 is a (coefficient or subscript) 15) cr(nh₃)₄(no₃)₂ # of molecules: # of elements: name of element: # of atoms: total # of atoms: the #6 is a (coefficient or subscript) 16) 5al(c₂h₃o₂)₃ # of molecules: # of elements: name of element: # of atoms: total # of atoms: the #2 is a (coefficient or subscript)
Answer
Explanation:
Step1: Analyze $Pb(NO_3)_2$
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of molecules: 1
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of elements: 3 (lead - Pb, nitrogen - N, oxygen - O)
- Pb: 1 atom, N: 2 atoms, O: 6 atoms
- Total # of atoms: 1 + 2+6 = 9
- The 3 is a subscript
Step2: Analyze $4Au(IO_3)_3$
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of molecules: 4
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of elements: 3 (gold - Au, iodine - I, oxygen - O)
- Au: 4 atoms, I: 12 atoms, O: 36 atoms
- Total # of atoms: 4+12 + 36=52
- The 4 is a coefficient
Step3: Analyze $CO_2$
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of molecules: 1
-
of elements: 2 (carbon - C, oxygen - O)
- C: 1 atom, O: 2 atoms
- Total # of atoms: 1+2 = 3
- The 2 is a subscript
Step4: Analyze $3CaCl_2$
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of molecules: 3
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of elements: 2 (calcium - Ca, chlorine - Cl)
- Ca: 3 atoms, Cl: 6 atoms
- Total # of atoms: 3+6 = 9
- The 3 is a coefficient
Step5: Analyze $Cr(NH_3)_6(NO_3)_3$
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of molecules: 1
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of elements: 4 (chromium - Cr, nitrogen - N, hydrogen - H, oxygen - O)
- Cr: 1 atom, N: 9 atoms, H: 18 atoms, O: 9 atoms
- Total # of atoms: 1+9+18 + 9=37
- The 6 is a subscript
Step6: Analyze $5Al(C_2H_3O_2)_3$
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of molecules: 5
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of elements: 4 (aluminum - Al, carbon - C, hydrogen - H, oxygen - O)
- Al: 5 atoms, C: 30 atoms, H: 45 atoms, O: 30 atoms
- Total # of atoms: 5+30+45+30 = 110
- The 2 is a subscript
Answer:
-
of molecules: 1
-
of elements: 3
- Name of element: Pb, N, O
-
of atoms: 1, 2, 6
- Total # of atoms: 9
- The 3 is a subscript
-
of molecules: 4
-
of elements: 3
- Name of element: Au, I, O
-
of atoms: 4, 12, 36
- Total # of atoms: 52
- The 4 is a coefficient
-
of molecules: 1
-
of elements: 2
- Name of element: C, O
-
of atoms: 1, 2
- Total # of atoms: 3
- The 2 is a subscript
-
of molecules: 3
-
of elements: 2
- Name of element: Ca, Cl
-
of atoms: 3, 6
- Total # of atoms: 9
- The 3 is a coefficient
-
of molecules: 1
-
of elements: 4
- Name of element: Cr, N, H, O
-
of atoms: 1, 9, 18, 9
- Total # of atoms: 37
- The 6 is a subscript
-
of molecules: 5
-
of elements: 4
- Name of element: Al, C, H, O
-
of atoms: 5, 30, 45, 30
- Total # of atoms: 110
- The 2 is a subscript