topic: multivalent metals and polyatomic ions
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Grade 10 : Chemistry. Topic: Multivalent Metals and Polyatomic Ions. Date: Thursday, March 21 st , 2013. Puzzlers. Courtesy of Mr. Luoma. Element of the Day. Element of the Day. What element do rat poison, laundry detergent, and Silly-Putty all have in common?. Element of the Day: Boron. - PowerPoint PPT PresentationTRANSCRIPT
TOPIC: MULTIVALENT METALS AND POLYATOMIC IONSDate: Thursday, March 21st, 2013
GRADE 10: CHEMISTRY
PUZZLERSCourtesy of Mr. Luoma
ELEMENT OF THE DAY
ELEMENT OF THE DAY What element do rat poison, laundry
detergent, and Silly-Putty all have in common?
Atomic Number: 5 5 Proton, 5 Electron Atomic Weight:
10.811 Location: Group 13
Metalloid Hard Resistant to heat
ELEMENT OF THE DAY: BORON
ELEMENT OF THE DAY: BORON Why is Boron cool to learn about?
Combined with Nitrogen, boron nitride crystals are created, which are almost as hard as diamonds.
Essential nutrient to all green plants Silly-Putty:
Soft and moldable in your hands Hard and bouncy when you throw it against the wall
Boric Acid flames: Green flames are produced when you burn boron http://www.youtube.com/watch?v=BevctrjVPjA
Green Flames from Pinecones: http://www.youtube.com/watch?feature=endscre
en&v=cXhX68qr5wY&NR=1
ELEMENT OF THE DAY: BORON
MULTIVALENT METALSCLASS QUESTIONS 1. Write the formula for the compound formed
by each pair of elements. a. gold(III) and nitrogen b. copper(II) and sulfur c. tin(II) and chlorine d. lead(IV) and oxygen
2. Write the names of the following binary ionic compounds. a. AuCl3 b. PbO2 c. Cu2O d. AsCl3
POLYATOMIC IONIC COMPOUNDSCLASS QUESTIONS 1. Use the table of common polyatomic ions
to help you name and write formulas for these compounds. Watch for multivalent ions, which require identification by a Roman numeral. For multivalent ions, write the name and formula for each form of the ion.
a. Be and PO43–
b. Sn and ClO3–
c. Cu and NO3–
d. NH4+ and SO4
2–
POLYATOMIC IONIC COMPOUNDSCLASS QUESTIONS 2. Write the formula for each ion, and for the
compound formed by each combination of ions. Use the list of common polyatomic ions to help you.
a. calcium and carbonate b. sodium and nitrite c. calcium and sulfite d. lead(II) and phosphate
IONIC COMPOUNDS WORKSHEET Complete the Ionic Compounds Worksheet
Binary Ionic Compounds Multivalent Metals Polyatomic Ionic Compounds
We will check the answers together in class Make note of which questions you were
having difficulty with ASK Questions if you are having difficulties!! A blank sheet with answers is posted on the
website: http://lcsgrade10chemistry.weebly.com/
BINGO – BINARY IONIC COMPOUNDS REVIEW (IF TIME) See Binary Ionic Compounds Review
Powerpoint
SUPPORTING DOCUMENTS ON Science 10 Textbook
Pages: 146-150
Chapter 4 Power Point for ON Science 10 Slides: 23-26
Chapter 4 Notebook - none
Websites: none
HOMEWORK ON Science 10
Textbook Page #: 150
Questions: 9, 10 Page #151
Try Questions:1-8 Read - “Ionic
Compounds at Home”
HOMEWORK ANSWERSPg. 150
9. a. binary, Ni2O3 b. binary, CuI2 c. binary, Sn3N4 d. binary, CrBr2 e. binary, FeP f. neither, LiHCO3 g. ternary, K2SO4 h. ternary, (NH4)3P i. ternary, Ba(NO3)2 j. binary, Co3(PO4)2
HOMEWORK ANSWERSPg. 150
10. a. gold(III) chloride b. tin phosphide c. chromium oxide d. nitrogen sulphide e. ammonium sulphide f. calcium fluoride g. iron(II) sulfite h. magnesium phosphate
HOMEWORK ANSWERS Pg. 151
1. a. chloride b. magnesium c. sulfate d. copper(II)
2. a. OH– b. S2–
c. Al3+ d. Cr3+
3. The diagram should show two potassium atoms each giving one electron to one sulfur atom, which has six electrons in its outer shell.
HOMEWORK ANSWERSPg. 151
4. The tiles repeat in a regular pattern like the atoms in an ionic compound. To represent sodium chloride, there would have to be an equal ratio of black and white tiles.
5. a. lithium carbonate b. ammonium nitrite c. copper(II) oxide
6.
a. Mg3N2 b. Al(OH)3 c. SnBr2 d. NiSO4
HOMEWORK ANSWERSPg. 151
7. a. Phosphorus was used instead of the
phosphate ion. Na3PO4 b. The brackets around the nitrate ion were
omitted. Ca(NO3)2 c. The two potassium ions are needed to make
the total charge zero. K2SO3
8. Fe2+ or Fe3+
MULTIVALENT METALSCLASS QUESTIONS & ANSWERS 1. Write the formula for the compound formed by
each pair of elements. a. gold(III) and nitrogen AuN b. copper(II) and sulfur CuS c. tin(II) and chlorine SnCl2 d. lead(IV) and oxygen PbO2
2. Write the names of the following binary ionic compounds. a. AuCl3 gold(III) chloride b. PbO2 lead(IV) oxide c. Cu2O copper(I) oxide d. AsCl3 arsenic(III) chloride
POLYATOMIC IONIC COMPOUNDSCLASS QUESTIONS & ANSWERS 1. Use the table of common polyatomic ions
to help you name and write formulas for these compounds. Watch for multivalent ions, which require identification by a Roman numeral. For multivalent ions, write the name and formula for each form of the ion. a. Be and PO4
3– beryllium phosphate Be3(PO4)2 b. Sn and ClO3
– i) tin(II) chlorate Sn(ClO3)2 ii) tin(IV) chlorate Sn(ClO3)4
c. Cu and NO3– i) copper(I) nitrate CuNO3 ii)
copper(II) nitrate Cu(NO3)2 d. NH4
+ and SO42– ammonium sulfate (NH4)2SO4
POLYATOMIC IONIC COMPOUNDSCLASS QUESTIONS & ANSWERS 2. Write the formula for each ion, and for the
compound formed by each combination of ions. Use the list of common polyatomic ions to help you. a. calcium and carbonate Ca2+ CO3
2- CaCO3 b. sodium and nitrite Na+ NO2
- NaNO2 c. calcium and sulfite Ca2+ SO3
2- CaSO3 d. lead(II) and phosphate Pb2+ PO4
3- Pb3(PO4)2