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form4 > science testing for equeous cations > Flashcards

science testing for equeous cations Flashcards

1
Q

copper nitrate+two drops of NaOH

A

Turns into a darker shade of blue and there is a precipitate

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2
Q

Copper nitrate+excess NaOH

A

Dark blue solution

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3
Q

Copper nitrate+ two drops of NH3

A

There is precipitate and the color gets paler

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4
Q

Copper nitrate+excess NH3

A

Sea through solution. No precipitate

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5
Q

Iron (II) ammonium sulfate+two drops of NaOH

A

dark orangy brown precipitate

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6
Q

Iron (II) ammonium sulfate+excess NaOH

A

Dark brown/black colored solution

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7
Q

Iron (II) ammonium sulfate+ two drops of NH3

A

Gold/oil colored precipitate on top

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8
Q

Iron (II) ammonium sulfate+ excess NH3

A

Golden/honey colored solution lots and lots it turns black

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9
Q

Iron (III) sulfate+ two drops of NaOH

A

strong red/ rust color solution

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10
Q

Iron (III) sulfate+ excess NaOH

A

Very dark brown colored solution with little red

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11
Q

Iron (III) sulfate+ two drops of NH3

A

Orangy brown precipitate

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12
Q

Iron (III) sulfate+ excess NH3

A

Dark brown/rust colored solution

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13
Q

Zinc sulfate+ two drops of NaOH

A

cloudy white solution

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14
Q

Zinc sulfate+ excess NaOH

A

Went totally clear again

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15
Q

Zinc sulfate+ two drops of NH3

A

cloudy milk white solution

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16
Q

Zinc sulfate+ excess NH3

A

Goes transparent

17
Q

Aluminum sulfate + two drops of NaOH

A

cloudy white/milky precipitate

18
Q

Aluminum sulfate + excess NaOH

A

goes clear again

19
Q

Aluminum sulfate + two drops of NH3

A

milky white precipitate

20
Q

Aluminum sulfate + excess NH3

A

Milky white precipitate

21
Q

Barium nitrate+ two drops of NaOH

A

White milky precipitate

22
Q

Barium nitrate+ excess NaOH

A

White milky precipitate

23
Q

Barium nitrate+ two drops of NH3

A

Milky precipitate

24
Q

Barium nitrate+ excess NH3

A

Milky precipitate

form4 (22 decks)

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