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Chemistry > PURITY > Flashcards

PURITY Flashcards

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1
Q

what is an impurity

A

an unwanted substance

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2
Q

impurities real life examples negatives

A

medicine/ food additives, can cause harmful effects

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3
Q

test for impurities/ results

A

measure boiling/ melting points

  • pure= sharp melting/ boiling points
  • impure= melting/ boiling points are over a range of temperatures
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4
Q

effect of impurity on boiling/ melting point

A

boiling point= increased

melting point= decreased (ie salt added to icy roads)

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5
Q

the more impurities… (melting/ boiling points)

A

the wider the range of temperatures over which melting/boiling points occur

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Chemistry (11 decks)

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