Term
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Definition
| a pure substance that cannot be separated into simpler substances by physical or chemical means |
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Term
| Name 3 Categories of elements |
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Definition
| Metals, nonmetals, metalloids |
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Term
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Definition
on left side of periodic table
conduct heat and electricity
shiny
malleable (beaten into sheets)
ductile (wires)
have very few valence e- |
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Term
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Definition
are on the right side
dull
not malleable, ductile
brittle if a solid
most are gases
have a lot of valence e- |
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Term
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Definition
have properties of both metals and nonmetals
tough zig zag line
some shiny some dull
semi-conductive |
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Term
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Definition
pure substances made of two or more atoms bonded together
chemically combined
Ex; H2O
cpds can be broken down into the atoms that make them up, but msut be chemically separated since they are chemically combined |
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Term
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Definition
1. atoms must be in a certain ratio or amount
2. properties of compounds are different from the prop. of atoms that make it up
when the atoms chemically combine they get new properties because a new substance was formed NaCl
3. can be broken down into simpler substances but must be done chemically because they are joined chemically
Ex. run electricity through water to split into gas |
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Term
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Definition
not pure
def-2 or more subs combined physically not chemically
they don't react together |
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Term
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Definition
1. substances of a mixture keep their identity b/c no chemical change happened
ex. fruit salad
2. can be separated by physical methods Ex. pick it out with magnets, evaporation, filter, distillation
3. components of mixture can be any ratio or amount |
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Term
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Definition
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Term
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Definition
| components appear same as one kind of substance |
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Term
| 2 Kinds of homogeneous mixtures |
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Definition
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Term
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Definition
| Two or more substances that are evenly distributed among each other |
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Term
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Definition
Solute- gets dissolved
Solvent- Does the dissolving |
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Term
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Definition
| 1.Don't settle out 2.Don't scatter light 3.Can't be separated by filtering 4.dissolves |
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Term
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Definition
| How much solute is dissolved |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Mixture that has properties of solutions and suspensions |
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Term
| 4 properties of a colloid |
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Definition
| 1.Don't settle out 2.Don't dissolve 3.Do scatter light 4.Can't be separated by filtering |
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Term
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Definition
| Mayo, fog, gelatin,, coolwhip |
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Term
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Definition
| a mixture in which componets can be identified by sight |
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Term
| name a kind of heterogeneous mixture |
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Definition
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Term
| list the 4 properties of a suspension |
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Definition
| do settle out, scatter light, don't dissolve, can be separated by filtering |
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Term
| name 4 examples of suspension |
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Definition
| muddy water, snow globe, paint, liquid antibiotic |
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