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Chap 2.4
Molecules and ions
Pages (35-39)
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Binary Ionic Compounds
Contain 2 different elementsName the metal first, then the nonmetal as -ide.
Use name of a metal with a fixed charge
Groups 1A, 2A, 3A
and Ag, Zn, and Cd
Examples:
NaCl sodium chloride
ZnI2 zinc iodide
Al2O3 aluminum oxide
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Learning Check N1
Complete the names of the following binary compounds:
Na3N sodium ________________
KBr potassium________________
Al2O3 aluminum ________________
MgS _________________________
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Solution N1
Complete the names of the following binary compounds:
Na3N sodium nitride
KBr potassium bromide
Al2O3 aluminum oxide
MgS magnesium sulfide
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Transition Metals
Most form 2 or more positive ions
1+ 2+ 1+ or 2+ 2+ or 3+
Ag+ Cd2+ Cu+, Cu2+ Fe2+, Fe3+
silver cadmium copper(I) ion iron(II) ion
ion ion copper (II) ion iron(III) ion
Zn2+
zinc ion
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Names of Variable Ions
Use a roman number after the name of a metal that forms two or more ions
Transition metals and the metals in groups 4A and 5A
FeCl3 (Fe3+) iron (III) chloride
CuCl (Cu+ ) copper (I) chloride
SnF4 (Sn4+) tin (IV) fluoride
PbCl2 (Pb2+) lead (II) chloride
Fe2S3 (Fe3+)iron (III) sulfide
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Learning Check N2
Name the following compounds:A. CaO
1) calcium oxide 2) calcium(I) oxide3) calcium (II) oxide
B. SnCl4 1) tin tetrachloride 2) tin(II) chloride 3) tin(IV) chloride
C. Co2O3
1) cobalt oxide 2) cobalt (III) oxide3) cobalt trioxide
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Solution N2
Name the following compounds:
A. CaO 1) calcium oxide
B. SnCl4 3) tin(IV) chloride
C. Co2O3 2) cobalt (III) oxide
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Learning Check N3
Complete the names of the following binary
compounds with variable metal ions:
FeBr2 iron (_____) bromide
Cu2O copper (_____) oxide
SnCl4 ___(_____ ) ______________
Fe2O3 ________________________
CuS ________________________
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Solution N3
Complete the names of the following binary
compounds with variable metal ions:
FeBr2 iron ( II ) bromide
Cu2O copper ( I ) oxide
SnCl4 tin (IV) chloride
Fe2O3 iron (III) oxide
CuS copper (II) sulfide
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Naming Binary Covalent Compounds
Two nonmetalsName each element End the last element in -ideAdd prefixes to show more than 1 atom
Prefixesmon 1 penta 5di 2 hexa 6tri 3tetra 4
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Learning Check N4
CO carbon ______oxide
CO2 carbon _______________
PCl3 phosphorus
_______chloride
CCl4 carbon ________chloride
N2O _____nitrogen _____oxide
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Solution N4
CO carbon monoxide
CO2 carbon dioxide
PCl3 phosphorus trichloride
CCl4 carbon tetrachloride
N2O dinitrogen monoxide
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Learning Check N5
A. P2O5 1) phosphorus oxide2) phosphorus pentoxide3) diphosphorus
pentoxide
B. Cl2O7 1) dichlorine heptoxide2) dichlorine oxide3) chlorine heptoxide
C. Cl2 1) chlorine2) dichlorine3) dichloride
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Solution N5
A. P2O5 3) diphosphorus
pentoxide
B. Cl2O7 1) dichlorine heptoxide
C. Cl2 1) chlorine
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Naming Ternary CompoundsContain at least 3 elementsName the nonmetals as a polyatomic ionExamples:
NaNO3 Sodium nitrate
K2SO4 Potassium sulfate
Al(HCO3)3 Aluminum bicarbonate
or aluminum hydrogen
carbonate
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Polyatomic Ions
A group of atoms with an overall charge.
NH4+ ammonium OH- hydroxide
NO3- nitrate NO2
- nitrite
CO32- ______________
HCO3- hydrogen carbonate (bicarbonate)
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Learning Check N6
Match each set with the correct name:
A. Na2CO3 1) magnesium sulfite
MgSO3 2) magnesium sulfate
MgSO4 3) sodium carbonate
B. Ca(HCO3)2 1) calcium carbonate
CaCO3 2) calcium phosphate
Ca3(PO4)2 3) calcium bicarbonate
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Solution N6
A. Na2CO3 3) sodium carbonate
MgSO3 1) magnesium sulfite
MgSO4 2) magnesium sulfate
B. Ca(HCO3)2 3) calcium bicarbonate
CaCO3 1) calcium carbonate
Ca3(PO4)2 2) calcium phosphate
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Learning Check N7
A. aluminum nitrate
1) AlNO3 2) Al(NO)3 3) Al(NO3)3
B. copper(II) nitrate
1) CuNO32) Cu(NO3)2 3) Cu2(NO3)
C. Iron (III) hydroxide
1) FeOH 2) Fe3OH 3) Fe(OH)3
D. Tin(IV) hydroxide
1) Sn(OH)4 2) Sn(OH)2 3) Sn4(OH)
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Solution N7
A. aluminum nitrate
3) Al(NO3)3
B. copper(II) nitrate
2) Cu(NO3)2
C. Iron (III) hydroxide
3) Fe(OH)3
D. Tin(IV) hydroxide
1) Sn(OH)4