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chemistry p2 > corrosion > Flashcards

corrosion Flashcards

1
Q

definition

A

destruction of materials by chemical reactions with substances in environment

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2
Q

what metals rust

A

iron
steel

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3
Q

what is the experiment that was carried out for rusting

A
  1. testube with distilled water open to air (air no water)
  2. test tube with boiled distilled water covered with oil (water no air)
  3. anhydrous calcium chloride (air no water) covered w rubber bung
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4
Q

how to stop errosion

A

barrier
electroplating
galvanising
sacrificial protection

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chemistry p2 (31 decks)

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