1. Write the chemical formula for the ionic compounds formed from combinations o
ID: 492617 • Letter: 1
Question
1. Write the chemical formula for the ionic compounds formed from combinations of the following ions.
Is this all right? Please let me know. I am unsure about the cation number of moles in cmpd and anion number of moles in compound sections.
Cation
Formula/Symbol
Cation
Number of moles in cmpd
Anion
Formula/Symbol
Anion
Number of moles in cmpd
Compound
Potassium & hydroxide
K+
1
OH-
1
KOH
Lead (I) & sulfate
Pb+
2
SO32-
1
Pb2SO3
Ammonium & permanganate
NH4+
1
MnO4-
1
NH4MnO4
Barium & acetate
Ba2+
1
C2H3O2-
2
Ba(C2H3O2)2
Ammonium & phosphate
NH4+
3
PO43-
1
(NH4)3PO4
Nickel & chlorite
Ni2+
1
ClO2-
2
Ni(ClO2)2
Magnesium & acetate
Mg2+
1
C2H3O2-
2
Mg(C2H3O2)2
Aluminum & carbonate
Al3+
2
CO32-
3
Al2(CO3)3
Strontium & sulfate
Sr2+
2
SO42-
2
SrSO4
Sulfur hexafluoride
SF6
Gold (III) & oxide
Au3+
2
O2-
3
Au2O3
Cation
Formula/Symbol
Cation
Number of moles in cmpd
Anion
Formula/Symbol
Anion
Number of moles in cmpd
Compound
Potassium & hydroxide
K+
1
OH-
1
KOH
Lead (I) & sulfate
Pb+
2
SO32-
1
Pb2SO3
Ammonium & permanganate
NH4+
1
MnO4-
1
NH4MnO4
Barium & acetate
Ba2+
1
C2H3O2-
2
Ba(C2H3O2)2
Ammonium & phosphate
NH4+
3
PO43-
1
(NH4)3PO4
Nickel & chlorite
Ni2+
1
ClO2-
2
Ni(ClO2)2
Magnesium & acetate
Mg2+
1
C2H3O2-
2
Mg(C2H3O2)2
Aluminum & carbonate
Al3+
2
CO32-
3
Al2(CO3)3
Strontium & sulfate
Sr2+
2
SO42-
2
SrSO4
Sulfur hexafluoride
SF6
Gold (III) & oxide
Au3+
2
O2-
3
Au2O3
Explanation / Answer
Answer:
Cation
Formula/Symbol
Cation
Number of moles in cmpd
Anion
Formula/Symbol
Anion
Number of moles in cmpd
Compound
Potassium & hydroxide
K+
1
OH-
1
KOH
Lead (I) & sulfate
Pb+
2
SO32-
1
Pb2SO3
Ammonium & permanganate
NH4+
1
MnO4-
1
NH4MnO4
Barium & acetate
Ba2+
1
C2H3O2-
2
Ba(C2H3O2)2
Ammonium & phosphate
NH4+
3
PO43-
1
(NH4)3PO4
Nickel & chlorite
Ni2+
1
ClO2-
2
Ni(ClO2)2
Magnesium & acetate
Mg2+
1
C2H3O2-
2
Mg(C2H3O2)2
Aluminum & carbonate
Al3+
2
CO32-
3
Al2(CO3)3
Strontium & sulfate
Sr2+
2
SO42-
2
SrSO4
Sulfur hexafluoride
SF6
Gold (III) & oxide
Au3+
2
O2-
3
Au2O3
NOTE : 2) Lead(I) & Sulphate : SO42- Formula : Pb2SO4.
Sulphite : SO32-. formula : Pb2SO3.
See speling and make change accordingly.
Rest all the formulae are correct. I just corrected the writing style i.e. superscript and lowerscripts added.
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Cation
Formula/Symbol
Cation
Number of moles in cmpd
Anion
Formula/Symbol
Anion
Number of moles in cmpd
Compound
Potassium & hydroxide
K+
1
OH-
1
KOH
Lead (I) & sulfate
Pb+
2
SO32-
1
Pb2SO3
Ammonium & permanganate
NH4+
1
MnO4-
1
NH4MnO4
Barium & acetate
Ba2+
1
C2H3O2-
2
Ba(C2H3O2)2
Ammonium & phosphate
NH4+
3
PO43-
1
(NH4)3PO4
Nickel & chlorite
Ni2+
1
ClO2-
2
Ni(ClO2)2
Magnesium & acetate
Mg2+
1
C2H3O2-
2
Mg(C2H3O2)2
Aluminum & carbonate
Al3+
2
CO32-
3
Al2(CO3)3
Strontium & sulfate
Sr2+
2
SO42-
2
SrSO4
Sulfur hexafluoride
SF6
Gold (III) & oxide
Au3+
2
O2-
3
Au2O3
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