polyvalent binary ionic compounds unit 6: ch 7.1b & ch 9.2b
TRANSCRIPT
![Page 1: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/1.jpg)
POLYVALENT BINARY IONIC COMPOUNDS
Unit 6: Ch 7.1b & Ch 9.2b
![Page 2: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/2.jpg)
CRISS-CROSS METHOD
• Determine the ions • Criss Cross the charges of the ions
= chemical formula• Example: Calcium + Phosphorus
![Page 3: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/3.jpg)
CRISS-CROSS METHOD
• Determine the ions • Criss Cross the charges of the ions
= chemical formula• Example: Calcium + Phosphorus–Ca + P• IONS = Ca2+ + P3-
![Page 4: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/4.jpg)
CRISS-CROSS METHOD
• Determine the ions • Criss Cross the charges of the ions
= chemical formula• Example: Calcium + Phosphorus–Ca + P• IONS = Ca2+ + P3-
Ca3P2
![Page 5: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/5.jpg)
POLYVALENT METALS
• Many but not all transition metals have “multiple personalities”–# of valence electrons varies• Polyvalent
– they can form more than one ion• Roman Numerals are used to signify the
charge
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TRANSITION METALS
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POLYVALENT TRANSITION METALS
• Metals with more than one possible charge:• Specific charge is indicated in
parenthesis
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POLYVALENT METALS & BONDING
• Fe(II) = – Iron (II) + oxygen =
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POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =
![Page 10: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/10.jpg)
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =• Fe2+ & O2-
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POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = • Fe2+ & O2- Fe2O2 FeO
![Page 12: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/12.jpg)
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen =
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POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen =• Fe3+ & O2-
![Page 14: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/14.jpg)
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen =• Fe3+ & O2- Fe2O3
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NAMING POLYVALENT IONS
• Stock Name: –Same as Simple Binary Ionic–Plus metal’s oxidation #/charge
(roman numeral) in parentheses• Fe2+ Iron (II) ion• Fe3+ Iron (III) ion
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NAMING POLYVALENT IONS
• Classical Name:– Uses root word (typically from Latin name) with
different suffixes for different oxidation #’s/charges
• -ous lower ionic charge• -ic higher ionic charge
– Example:• Iron Ferrum– Fe2+ Ferrous ion–Fe3+ Ferric ion
–Pg 255 List of classical names – Take down the roots of the listed metals!
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NAMING POLYVALENT BINARY IONIC COMPOUNDS
• Same as Simple Binary Ionic Compounds– Combine the ion names
• FeO–Stock Name: Iron (II) Oxide–Classical Name: Ferrous Oxide
• Fe2O3
–Stock Name: Iron (III) Oxide–Classical Name: Ferric Oxide
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PRACTICE - POLYVALENT COMPOUNDS
• Names to Formulas– Silver (III) Nitride– Silver (II) Nitride
– Vanadium (III) Chloride– Vanadium (II) Chloride
– Lead (IV) Oxide– Lead (II) Oxide
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PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– Fe2O3
![Page 20: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/20.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– Fe2O3 Fe3+ and O2-
![Page 21: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/21.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– Fe2O3 Fe3+ and O2-
• Check the anion’s charge against the periodic table
![Page 22: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/22.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– Fe2O3 Fe3+ and O2-
• Check the anion’s charge against the periodic table– O2- is correct So Fe is a 3+
![Page 23: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/23.jpg)
PRACTICE - POLYVALENT COMPOUNDS• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– Fe2O3 Fe3+ and O2-
• Check the anion’s charge against the periodic table– O2- is correct So Fe is a 3+–Name Iron (III) oxide or Ferric Oxide
![Page 24: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/24.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– FeO
![Page 25: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/25.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– FeO Fe1+ and O1-
![Page 26: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/26.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– FeO Fe1+ and O1-
• Check the anion
![Page 27: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/27.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– FeO Fe1+ and O1-
• Check the anion–O1- is NOT correct Been a reduction
![Page 28: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/28.jpg)
PRACTICE - POLYVALENT COMPOUNDS• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)– FeO Fe1+ and O1-
• Check the anion–O1- is NOT correct Been a reduction
–1:1 ratio – metal started with the same charge as the anion.
![Page 29: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/29.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3
![Page 30: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/30.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3 Sn3+ and O1-
![Page 31: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/31.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3 Sn3+ and O1-
O2-
![Page 32: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/32.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3 Sn3+ and O1-
O2-
x 2
![Page 33: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/33.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3 Sn3+ and O1-
Sn6+ O2-
x 2
![Page 34: POLYVALENT BINARY IONIC COMPOUNDS Unit 6: Ch 7.1b & Ch 9.2b](https://reader030.vdocuments.site/reader030/viewer/2022013115/56649e565503460f94b4d858/html5/thumbnails/34.jpg)
PRACTICE - POLYVALENT COMPOUNDS
• Formula to Name–Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)–SnO3 Sn3+ and O1-
Sn6+ O2-
–Name: Tin (VI) Oxide
x 2