chemistry

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what is an atom
the smallest part of a substance while still maintaining the properties of the substance
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what is an element
it is made up of one type of atom; on the periodic table
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what is a compound
a compound is made up of 2 or more elements that are chemically bonded together
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what is the difference between a mixture and compound
a compound are elements that are chemically bonded but a mixture is not, the quantaties are fixed in a compound but not a mixture and compounds are not easily separated
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how would you separate a mixture
chromatography, distillation, evaporation and filtration. one example is the sand and salt experiment
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when balancing equations...
never change the little numbers, only big numbers and elements cannot be created or destroyed
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what is chromatography
chromatography is separating mixtures of dyes
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how do you calculate the Rf values
distance traveled by the dot divided by distance traveled by solvent front. the Rf value will always be lower than 1
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Other cards in this set

Card 2

Front

what is an element

Back

it is made up of one type of atom; on the periodic table

Card 3

Front

what is a compound

Back

Preview of the front of card 3

Card 4

Front

what is the difference between a mixture and compound

Back

Preview of the front of card 4

Card 5

Front

how would you separate a mixture

Back

Preview of the front of card 5
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