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Re: CHEMISTRY!

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Siberith9 is not online. Siberith9
Top 100 Poster
Joined: 22 Nov 2008
Total Posts: 28153
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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Europeancow2 is not online. Europeancow2
Joined: 02 Aug 2009
Total Posts: 37979
29 Sep 2011 09:10 PM
didnt you post this in OT?
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Siberith9 is not online. Siberith9
Top 100 Poster
Joined: 22 Nov 2008
Total Posts: 28153
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 is not online. GregarSP
Joined: 06 Jan 2010
Total Posts: 17004
29 Sep 2011 09:12 PM
nob
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Siberith9 is not online. Siberith9
Top 100 Poster
Joined: 22 Nov 2008
Total Posts: 28153
29 Sep 2011 09:12 PM
:o
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GregarSP is not online. GregarSP
Joined: 06 Jan 2010
Total Posts: 17004
29 Sep 2011 09:13 PM
Sorry sorry!

can you forgive me?
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1337Tickets is not online. 1337Tickets
Joined: 26 Sep 2010
Total Posts: 467
29 Sep 2011 09:15 PM
I learned this 3 years ago. Do you think I'm 9?!
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millizam is not online. millizam
Joined: 24 Oct 2008
Total Posts: 591
29 Sep 2011 09:23 PM
You are wrong with some of those.
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pwnful is not online. pwnful
Joined: 03 Oct 2008
Total Posts: 10505
29 Sep 2011 09:24 PM
MOVE THOSE ELECTRONS

GO GO GO
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acealeam is not online. acealeam
Joined: 16 Oct 2009
Total Posts: 14875
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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cuteboy3672 is not online. cuteboy3672
Joined: 17 May 2009
Total Posts: 18071
17 Jan 2017 02:13 PM
k
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cuteboy3672 is not online. cuteboy3672
Joined: 17 May 2009
Total Posts: 18071
17 Jan 2017 02:16 PM
why is this the last thing on rt when i search "mass effect ending"
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