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51 Cards in this Set

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  • Back
List 2 physical properties of magnesium.
its atomic weight is 24, and its a metal
list a chemical property of magnesium
when Mg reacts with O it forms MagnesiumOxide
sublimination
the process of a material transforming from a solid to a gas without passing through the liquid phase
list 4 evidences of a chemical change
change in color, where burning occurs, where rust occurs, new substance formed
what is applied chemistry?
chemistry used to produce something useful
what is the variable in an experiment
the part of the experiment that is manipulated to produce a certain outcome.
how do theories laws and hypotheses differ?
a hypothesis is an educated guess
a theory is an idea about an observation that is accepted but can evolve, a law is a proven idea
list any 5 subatomic particles besides protons electrons and neutrons
alpha particle, beta particle, hadron, baryon, quatark
halogens
they are diatomic and are in group 7A
inner transitions
they are the biggest group and consist of the lanthanide and actinide series
largest family on the periodic table
group 3B
list 5 diatomic elements
chlorine, bromine, iodine, astatine, fluorine
How do compounds and mixtures differ?
compounds contain chemically altered elements and have "a recipe" in mixtures elements retain their properties and have no recipe
True or False You can be precise without being accurate
true
what are metalloids?
metalloids are elements that contain both metal and nonmetal qualities used in making computer chips
ate radicals form __ acids whle ite radicals form __ acids
ic, ous
binary compounds, except acids, end in ___
ide
the only binary compunds that use prefixes to indicate numbers of atoms are those involving two _______
nonmetals
binary acids begin with the prefix ___ and end with the suffix ___
hydro, ic
NO3
nitrate, -1
CO3
carbonate, -2
PO4
phosphate, -3
OH
hydroxide, -1
SO4
sulfate, -2
CN
cyanide, -1
NH4
ammonium, +1
Thomson
found the charges in atoms using a ray
Chadwick
founded neutrons in the atoms' nucleus
Rutherford
found that the atoms' mass is held primarily in its nucleus
Dalton
found that atoms are the building blocks of every material
What law is obeyed when you are given that 2Mg + O2 --> 2MgO
48 + 32 = 2(24 + 16)
law of mass conservation
what law is followed when you are given that water is 89% oxygen and 11% hydrogen
Law of definite composition
father of modern chemistry
lavoisier
efforts to turn less expensive elements in to Au
alchemy
6.02 x 10^23
avogadro's number
modern periodic table arrangement
mendeleev
HCL
hydro chloric
HBr
hydrobromic
HI
hydro iodic
H2SO4
sulfuric acid
H2PO4
phosphoric acid
H2CO3
carbonic acid
dinitrogen pentaoxide
N2O5
tetraphosphorous decaoxide
P4O10
iron (III) chloride
FeCl3
chromium (II) oxide
CrO
(NH4)2SO4
ammonium sulfate
Cu3(PO4)2
copper (II) phosphate
write correct forumlas for binary compunds in 1A-3A metals + nonmetals
potassium sulfide
aluminum oxide
magnesium bromide
K2S
Al2O3
MgBr2
examples that are NOT chemical changes
sublimation of iodine, melting of ice cubes, melting of a substance at 79* C
True or False To be a correct formula for a compund, the cards we used last week had to form squares or rectangles. This happened because the number of electrons gained by the metals was equal to the number of electrons lost by nonmetals.
False