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84 Cards in this Set
- Front
- Back
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chemistry
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study of the composition, properties and transformations of matter
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property
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any characteristic that can be usedd to describe or identify matter
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intensive properties
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properties that don't change with the size of sample; like temperature and melting point
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extensive properties
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properties that have values that do depend on the sample size; like length, size, volume
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physical properties
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characteristics that don't involve a change in a sample's chemical makeup
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chemical properties
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characteristics that do involve a change in chemical makeup
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with adding and subtracting what do I ask regarding significant figures?
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how precise? (Because the sig figs can go up)
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when you multiply or divide, what question do I ask regarding significant figures.
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how many significant figures does each number have?
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1 in = equals how many cm?
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2.54 cm
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how many pounds in 1 Kg?
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2.205 (4 sig fig's not an exact)
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1 mL = what?
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1 cm3 or 1 cc
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1 cubic cm = what?
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1 mL or 1 cc
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1 cc = what?
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1 cubic cm or 1 mL
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G
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giga = 10x9
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M
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mega = 10x6
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k
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kilo = 10x3
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d as num prefix
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deci = 10x-1
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c
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centi = 10x-2
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m as a prefix number =
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milli = 10x-3
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µ
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micro = 10x-6
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n as number prefix
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nano = 10x-9
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p as num prefix
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pico = 10x-12
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density =
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mass/volume
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d
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= m/v
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EtOH = ?
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ethanol
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isotopes
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atoms of the same element that differ from each other by the number of neutrons
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molecular vs ionic
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molecular = 2 nonmetals
ionic = 1 metal and nonmetal |
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charge of group 1?
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+1
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charge of group 2?
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+2
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Charge of Ag
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Ag+1
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charge of Zn
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Zn+2
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Charge of Al
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Al3+
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formula for Amonium
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NHsub4+1
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formula for ammonia
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NHsub3
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hydronium
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H3O+
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mercury(I)
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Hgsub2upper2+, it's because it's a polyatomic atom of 2 Hg's with a +1 each
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mercury(II)
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Hg 2+
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properties of metal
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1. Malleable
2. conductive 3. lustrous 4. ductile |
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new numbering system
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1-18, 1 & 2, 13-18 are main groups, then 3-12 are transitionary metals
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old numbering system
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1A, 2A, then a break and then 3A-8A are other side of main group,
Transitionary metals are 3b-12b are these |
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which elements are metalloids
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B, Si, Ge, As, Sb, Te, Po
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alkali metals top to bottom are
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Li, Na, K, Rb, Cs, Fr
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alkali earth metals top to bottom are
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Be, Mg, Ca, Sr, Ba, Ra
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Which is which of the R's
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Ra = radium
Rn = radon |
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halogens top to bottom are
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F
Cl Br I At |
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chalcogens are also known as what?
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oxygen family
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oxygen family are also known as what?
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chalcogens
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oxygen fam/ chalgogens listed top to bottom are what?
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O
S Se Te Po |
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Noble gases listed top to bottom are what?
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He, Ne, Ar, Kr, Xe, Rn
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accuracy
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refers to how closely a measurement agrees with the "true" or accepted value
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precision
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refers to how closely individual measurements agree with each other
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significant digits are used for:
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since all measurements possess some degree of uncertainty, we indicate how much uncertainty by the use of them
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if last digit is 5 and preceding digit is ODD, what do you do according to the funny rule?
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round up
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if last digit is 5 and preceding digit is EVEN, what do you do according to the funny rule?
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round down
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1 in = what exactly by definition?
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2.54 cm
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What are the fundamental SI units of measure?
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Mass - kilogram -kg
Length - meter - m Temp - kelvin - K Amt -- mole - mol Time - second - s Electr. - ampere - A Lumin. - candela - cd |
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candela's abbrev.
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cd
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ampere's abbrev.
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A
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second's abbrev.
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s
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mole's abbrev.
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mol
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kelvin's abbrev.
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K
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kilogram's abbrev.
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kg
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meter's abbrev.
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m
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conversion C to K
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C = K -273.15
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conversion K to C
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K = C +273.15
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Platinum's charge is what?
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Pt+1
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iron's charge is what?
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Fe2+ or Fe3+
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copper's charge is what?
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Cu+1 or Cu2+
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Cobalt's charge is what?
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Co+2 or Co4+
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what is a monatomic cation?
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it's an ion that consists of a single element like Na+ or Ca2+ or Al3+
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how do you remember whether it's ferrous or ferric?
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one with the higher charge is "-ic"
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how do you say Fe3+ old school?
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ferric
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how do you say Fe2+ old school
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ferrous
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How do you say Cu+ old school?
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cuprous
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how do you say Cu2+ old school
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cupric
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Conversion Celsius -> Fahrenheit
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F = (9/5)C + 32
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conversion Celsius -> Kelvin
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K = C + 273.15
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what is ammonium's formula?
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NH4+
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What is ammonia's formula
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NH3
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another name for bisulfate is?
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hydrogen sulfate
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another name for hydrogen sulfate is?
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bisulfate
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another name for hydrogen phosphate?
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biphosphate
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another name for biphosphate?
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hydrogen phosphate
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femto
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10x-15
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