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44 Cards in this Set
- Front
- Back
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Positive Ions... |
ALWAYS go first |
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"Cross multiply"... |
if charges are not the same |
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If the subscript is "1"... |
do not write it |
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If the charges are the same... |
do not include the subscripts |
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When more than one polyatomic ion (complex ion) is needed)... |
Use parentheses around the ion and put the subscript outside the parentheses |
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First element is named... |
as the element |
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Second element is named... |
As an anion ending in "ide" |
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Prefix: 1 |
mono |
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Prefix 2: |
Di |
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Prefix 3: |
Tri |
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Prefix 4: |
Tetra |
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Prefix 5: |
Penta |
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Prefix 6: |
Hexa |
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Prefix 7: |
Hepta |
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Prefix 8: |
Octa |
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Prefix 9: |
Nona |
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Prefix 10: |
Deca |
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Prefix 11: |
None |
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Prefix 12: |
Dodeca |
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Exothermic |
Releases heat |
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Endothermic |
Absorbs Heat |
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Q=mCp^T
Q= |
heat |
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Q=mCp^T
M= |
mass |
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Q=mCp^T
Cp= |
Specific heat |
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Q=mCp^T
^T= |
Change in initial temperature (initial - final) |
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{Greek Atomic Theory}
Empedocles |
4 elements: earth, air, fire, water
500 BCE |
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{Greek Atomic Theory}
Atomists |
All matter is composed of invisible atoms
Different kinds of atoms (rock vs metal vs. clay)
Atoms had different kinds of characteristics |
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{Greek Atomic Theory}
Democritus |
Believed in an invisible, small particle (matter is discrete)
Atom= invisible |
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{Greek Atomic Theory}
Aristotle |
Aritotelians
Matter is continous
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{French Science}
Lavoisier |
1750s's
father of modern chemistry
fist textbook on chemistry
executed for being a rich man during the revoution |
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{French Science}
J Proust
laws |
Law of conservation
law of definite proportion
No explanation for either law
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{French Science}
J Proust
elements |
studies elements found in chemical compounds
the elements in water have a fixed mass ratio
(water) hydrogen to oxygen-1:8
Also: He was killed during the french revolution |
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{Greek Atomic Theory}
What happened to the Atom? |
Aristoelians won out over Atomism and the atom faded away |
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Dalton's first principle of atomic theory
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All matter is composed of indivisible, indestructible, atoms |
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Dalton's second principle of atomic theory |
Atoms of an element are exactly the same. Some physical and chemical properties |
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Dalton's third principle of atomic theory |
Atoms of different elements have different physical and chemical properties |
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Daltons first three principles of atomic theory... |
come straight from ancient Greek ideas |
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Dalton's fourth principle of atomic theory |
Atoms combine are fixed, whole number ratios to form compounds.
This explains the law of definite proportion- gives us formulas |
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Dalton's fifth principle of atomic theory |
Atoms cannot be created, destroyed or divided in a chemical reaction
Law of conservation of mass |
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Fraunhofer |
1820
Studies solar spectrum
Observed dark lines in the solar spectrum |
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Dobereiner |
1827
observed triads of elements
-smooth trends in the physical properties -middle element properties were the average of the outer element properties |
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Kirchoff & Bunsen |
1855
developed spectroscopy
elements emit specific wavelengths when heated
elements also absorb light at exactly the same wavelength
There are elements in the sun that are absorbing light- explains dark lines
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Newlands |
1860
Thought he saw a way of organizing the elements into groups
Arranged elements in order of increasing mass |
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D. Mendeleev |
1869
Developed periodic tables
left spares for undiscovered elements
predicted physical and chemical properties of undiscovered elements
His predictions were right~!!! |
