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states of matter:
Liquid, gas, solid
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what is the relationship between Volume of gas and heat?
The volume expands as heat increases
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Homogeneous def:
a solution or mixture composed of 2 or more substances that is the same throughout.
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Solutions are
a homologous mixture
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define pure substance
matter that is homogeneous with a definite/fixed composition or chemical formula, and cannot be separated (homogenous mixture can be separated).
It is formed from a compound or element
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mL, L, cm^3 relationship
1mL=1000L=1cm^3
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conversion formula for C to K
K=C+273.15
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F to C formula
C=(f-32)/1.8
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Density formula, M formula, D formula
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What is density and temp's relationship
Density is dependent on temperature
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what is the smallest particle of an element that can exist
an atom
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most abundant element on earth
oxygen
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list characters of metals
- -lustrous
- -metalic-conduct heat and electricity
- -ductile
- -high density
- -high melting point
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list characters of nonmetals
- -dull (if solid)
- -britile
- -poor conduction
- -non ductule
- -low density
- -low melting point
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what are liquid elements at room temp?
bromine and mercury
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7 diatomic elements
- I have never found clubs on board: I, H, N, F, Cl, O, Br
- (F,Cl, Br,I are all halogens)
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Metal and non-metal usually make a___ compound
ionic compound
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2 nonmetals usually make a ____ compound
molecular compound
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what charge do metals and nonmetals have
- metals=cation +
- nonmetals=anion -
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which of the following observation is not a chemical change
B) , because alloys are not only mixtures of 2 metals, and do not undergo chemical change.
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What is the law of conservation of mass:
Energy can not be created or destroyed, it simply transforms, so the mass of the reactant= the mass of the product.
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