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! Chemistry Exam June 2024 > Metal Reactions Observations > Flashcards

Metal Reactions Observations Flashcards

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1
Q

lithium + water

A

floats, effervescence, metal disappears, red flame - stored in oil to prevent reaction with oxygen and water vapour, alkaline, purple UI

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2
Q

Sodium + water

A

floats, effervescence, melts into a ball, metal disappears, exothermic, yellow flame - stored in oil to prevent reaction with oxygen and water vapour, alkaline, purple UI

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3
Q

potassium + water

A

self-ignites into a lilac flame, floats, melts into a ball, effervescence, metal disappears, exothermic - stored in oil to prevent reaction with oxygen and water vapour, alkaline, purple UI - hydrogen gas produced is ignited by extreme exothermic reaction

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4
Q

calcium + water

A

effervescence, metal sinks and rises up repeatedly - alkaline, blue UI

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5
Q

magnesium + water

A

slow effervescence, metals sinks - alkaline, blue UI

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6
Q

barium + water

A

effervescence, metal sinks - alkaline, blue UI

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7
Q

magnesium + steam

A

bright white flame, white solid formed

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8
Q

zinc + steam

A

yellow solid formed which turned white when cooled, glows red hot

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9
Q

iron + steam

A

solid glows red, forms black solid

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10
Q

magnesium + acid

A

rapid effervescence, metal disappears, colourless solution forms, exothermic

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11
Q

zinc + acid

A

steady effervescence

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12
Q

iron + acid

A

slow effervescence

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13
Q

lead + acid

A

few bubbles produced very slowly

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14
Q

copper + acid

A

no reaction

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15
Q

aluminium + acid

A

no initial reaction, after 20 mins effervescence is observed - Al is covered in an impervious layer of aluminium oxide which is basic and will react with acids

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16
Q

zinc + iron (II) sulphate

A

grey/black fur forms on surface of metal

17
Q

zinc + copper(II) sulphate

A

pink/brown fur forms on surface of metal, pink brown solid, grey solid disappears, blue solution turns colourless

18
Q

copper + silver nitrate

A

colourless solution turns blue, pink-brown solid disappears, grey solid forms

19
Q

iron + copper(II) sulphate

A

blue solution turns pale green/fades in colour, grey solid disappears, pink brown solid forms

20
Q

magnesium + iron (II) sulphate

A

orange/brown solution turns colourless/fades in colour, silver solid disappears, dark grey solid forms

! Chemistry Exam June 2024 (11 decks)

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