Siberith9
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| Joined: 22 Nov 2008 |
| Total Posts: 28153 |
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| 29 Sep 2011 09:10 PM |
notes for my first term of chemistry enjoy!
Chemistry-study of matter organic chemistry - carbon containing chemicals non-organic chemistry- non carbon containing chemicals. physical chemistry- physics of chemistry biochemistry- chemistry about a the way of life Analytical chemistry- chemistry using instrumentation to analyze data Theoretical chemistry- using math and computers to predict chemistry
SCI. METHOD
1. observation over something which cannot be explained 2. attempt to explain (hypothesis) 3. devise an expierenment controls-constant variables-change 4.Do expierenment (data) 5.Analyze data formed hypothesis disaprove hypothesis(go back to hypothesis) 6.Theory 7. Law(absolutely proven
SCI FIGS
1. all non-zero numbers are sig figs 2. all zero's between non-zero's are sig. numbers 3. zero's to the left of a decimal Trailing zero's- zeros @ end leading zeros-zeros@beginning
For trailing zero's to left of decimal they are sig figs if a decimal point is written
4 to the right of the decimal point
mole-'chemist dozen'
602,000,000,000,000,000,000,000 6.02x10^23
average atomic mass =mass isotope 1 x relative abundance + mass isotope 2x RA
LIGHT
Electromagnetic Radiation
wavelength-distance turned by one cycle "lambda"
Frequency- number of cycles in a second 30x10^8 m/s = C~speed of light
ELECTROMAGNETIC SPECTRUM (E, -m) (Gamma)(x-ray)(UV)____(infared)(microwaves)(radiowaves) short wave-high frequency-high energy
ROYGBIV-Red orange yellow, green, blue, indigo, violet
Long waves-high frequency-low energy
Ground State - Excited State - Heat electricity, light
HISTORY OF QUANTAM MECHANICS Bohr- energy levels Einstein- photo electron effect
Light is a particle with quantam ending light is a wave
de broglie- if light is both particle and wave, what about electrons? yes, electrons can also act as wave
All particles with a velocity has a wavelength
schrodinger- there must be a set of equations that explained all about the electrons
(WAVE EQUATIONS)
Heisenberg unceptory principles E position
1 principle quantum numbers tells the energy level n=1,2,3
2 angular momentum Quantum number
3 magnetic quantum number
(0)s - 0 n=1 L=0(p) -1,0,1 (3p) etc.
4 spin quantum number ms= +1/2 spin up -1/2 spin down
Electron configuration
Aufbam diagram 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 6f 7s 7p 7d 7f
Noble gas shorthand-alraedy know
THE ATOM-BUILDING BLOCKS OF MATTER
Elements - types of atom
3 subatomic particles
proton (p+) nucleaus +1 ~1 Neutron (n0) nucleaus 0 ~ 1 Electron (e-) e cloud -1 ~0
Atomic Mass Unit Scale (AMU)
Protons-define the atoms id number of p+ = element
Electron bonding -negative (+) charge
Atoms must be neutral #p's=#e's
Neutron- stabalize nucleus isotopes dif element dif mass atoms can have certain p+/n0
if it a stable ratio that atom will exist
if it isnt stable it doesnt exist
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| 29 Sep 2011 09:10 PM |
| didnt you post this in OT? |
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Siberith9
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| Joined: 22 Nov 2008 |
| Total Posts: 28153 |
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| 29 Sep 2011 09:11 PM |
@europeancow
yes i did, but OT is not serious nor will i think rt but its better to get dif opinions |
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GregarSP
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| Joined: 06 Jan 2010 |
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Siberith9
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| Joined: 22 Nov 2008 |
| Total Posts: 28153 |
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GregarSP
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| Joined: 06 Jan 2010 |
| Total Posts: 17004 |
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| 29 Sep 2011 09:13 PM |
Sorry sorry!
can you forgive me? |
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| 29 Sep 2011 09:15 PM |
| I learned this 3 years ago. Do you think I'm 9?! |
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millizam
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| Joined: 24 Oct 2008 |
| Total Posts: 591 |
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| 29 Sep 2011 09:23 PM |
| You are wrong with some of those. |
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pwnful
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| Joined: 03 Oct 2008 |
| Total Posts: 10505 |
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| 29 Sep 2011 09:24 PM |
MOVE THOSE ELECTRONS
GO GO GO |
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acealeam
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| Joined: 16 Oct 2009 |
| Total Posts: 14875 |
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| 29 Sep 2011 09:24 PM |
>but OT is not serious
~One day your life will flash before your eyes, make sure it's worth watching.~ |
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| 17 Jan 2017 02:16 PM |
| why is this the last thing on rt when i search "mass effect ending" |
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