AQA Chemistry Unit C2 (Higher Tier) REVISION NOTES

Here is a Portable Document Format (.pdf) version of some revision notes I made for myself for the January 2009 AQA Module 2 Chemistry Higher Tier examination. It covers all topics, perhaps not to the detail required for your own personal understanding. Note that these were not designed with general use in mind, but I thought I might as well upload them after I had used them. There may be some mistakes with the English, but there should not be anything wrong with the actual science. Finally, my apologies for the low quality of reproduction during conversion to .pdf. Contact me for the original Microsoft Word 2007 document, which is much larger and cannot be successfully converted to an earlier version of Word Document - believe me, I've tried!

SORRY - THIS FILE WILL NOT TRANSFER TO A PODCAST (MP3 FILE) - THE DESIGN IS TOO COMPLEX

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  • Created by: Jackarias
  • Created on: 13-01-09 21:49

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EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Atoms
· Atoms consist of electrons surrounding a nucleus that contains protons and neutrons.
· The number of protons in an atom is called its atomic number. In the periodic table
atoms are arranged in atomic number order.
·…

Page 3

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I
Page 1111 of 11111111 t i s i m p o r t a
nttonotethatitisdifficulttoseparatethetwooriginalelementsout
again.

· Isotopes are different atomic forms of the same elements, which have the SAME
number of PROTONS (but a different number of neutrons).
· Vertical columns of the periodic table are called groups.…

Page 4

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Page 5

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EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Chemical Bonding
· Ions are electrically charged particles formed when atoms lose or gain electrons.
· They have the same electronic structures as noble gases.
· Metal atoms form positive ions, while non-metal atoms form negative ions.
· The…

Page 6

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group number minus eight. o Hydrogen forms H+ ions.
· A covalent bond is a strong bond between two non-metal atoms.
· It consists of a shared pair of electrons.
· A covalent bond can be represented by a straight line or dot-and-cross diagram.
· Hydrogen and chlorine can each…

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EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Nanotechnology
· Nanoparticles range in size from about 100nm down to about 1nm.
· They are typically the size of small molecules, and far too small to see with a
microscope.
· Nanoparticles have a very large surface area…

Page 9

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· The M
r

of a substance is known as the MOLE of that substance.
· Percentage composition... [(A
r

x Number of atoms of that element) ÷ (M
r

of whole compound)] x 100
·
WhatisthepercentageofoxygeninFe2O3?
[(16x3)÷(56x2)+(16x3)]
x100=30%
Page 3333 of 11111111

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AQA Chemistry Unit C2 (Higher Tier) REVISION NOTES

Here is a Portable Document Format (.pdf) version of some revision notes I made for myself for the January 2009 AQA Module 2 Chemistry Higher Tier examination. It covers all topics, perhaps not to the detail required for your own personal understanding. Note that these were not designed with general use in mind, but I thought I might as well upload them after I had used them. There may be some mistakes with the English, but there should not be anything wrong with the actual science. Finally, my apologies for the low quality of reproduction during conversion to .pdf. Contact me for the original Microsoft Word 2007 document, which is much larger and cannot be successfully converted to an earlier version of Word Document - believe me, I've tried!

SORRY - THIS FILE WILL NOT TRANSFER TO A PODCAST (MP3 FILE) - THE DESIGN IS TOO COMPLEX

  • Created by: Jackarias
  • Created on: 13-01-09 21:49

Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Atoms
· Atoms consist of electrons surrounding a nucleus that contains protons and neutrons.
· The number of protons in an atom is called its atomic number. In the periodic table
atoms are arranged in atomic number order.
·…

Page 3

Preview of page 3
I
Page 1111 of 11111111 t i s i m p o r t a
nttonotethatitisdifficulttoseparatethetwooriginalelementsout
again.

· Isotopes are different atomic forms of the same elements, which have the SAME
number of PROTONS (but a different number of neutrons).
· Vertical columns of the periodic table are called groups.…

Page 4

Preview of page 4

Page 5

Preview of page 5
EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Chemical Bonding
· Ions are electrically charged particles formed when atoms lose or gain electrons.
· They have the same electronic structures as noble gases.
· Metal atoms form positive ions, while non-metal atoms form negative ions.
· The…

Page 6

Preview of page 6
group number minus eight. o Hydrogen forms H+ ions.
· A covalent bond is a strong bond between two non-metal atoms.
· It consists of a shared pair of electrons.
· A covalent bond can be represented by a straight line or dot-and-cross diagram.
· Hydrogen and chlorine can each…

Page 7

Preview of page 7

Page 8

Preview of page 8
EXAM 15th Jan 09 @ 1.30pm [CHEMISTRY UNIT 2 REVISION NOTES]

Nanotechnology
· Nanoparticles range in size from about 100nm down to about 1nm.
· They are typically the size of small molecules, and far too small to see with a
microscope.
· Nanoparticles have a very large surface area…

Page 9

Preview of page 9
· The M
r

of a substance is known as the MOLE of that substance.
· Percentage composition... [(A
r

x Number of atoms of that element) ÷ (M
r

of whole compound)] x 100
·
WhatisthepercentageofoxygeninFe2O3?
[(16x3)÷(56x2)+(16x3)]
x100=30%
Page 3333 of 11111111

Page 10

Preview of page 10

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No comments have yet been made