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Chemistry > Chemical Changes > Flashcards

Chemical Changes Flashcards

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1
Q

Reactivity series

A

K,Na,Li,Ca,Mg,Al,C,Zn,Fe,Ni,Sn,Pb,H,Cu,Hg,Ag,Au,Pt

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2
Q

What are rocks that contain metals called?

A

Ores

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3
Q

What must a happen to a metal for it to be pure

A

Must be reduced

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4
Q

How is the reactivity series determined?

A

Observing reactions with water and dilute acid

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5
Q

What is the reaction when a metal pushes out another called

A

Displacement

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6
Q

What is a displacement reaction

A

When a more reactive metal pushes out a less reactive metal in a compound

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7
Q

Metal+water——->

A

Metal Hydroxide+ Hydrogen

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8
Q

Metal + Acid————>

A

Salt+Hydrogen

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9
Q

Metal+Oxygen———>

A

Metal Oxide

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10
Q

Ores are only mined when?

A

The desired metal is abundant enough to be profitable

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11
Q

When does reduction when

A

When the metal is less reactive than carbon

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12
Q

When does electrolysis happen

A

When the metal is more reactive than carbon

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13
Q

Why is gold found as an element

A

It’s native so it doesn’t react to form ores

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14
Q

When is extraction not required

A

When the metals are native (unreactive)

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15
Q

Is electrolysis or Reduction used for Potassium?

A

Electrolysis

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16
Q

Is electrolysis or Reduction used for sodium?

A

Electrolysis

17
Q

Is electrolysis or Reduction used for calcium?

A

Electrolysis

18
Q

Is electrolysis or Reduction used for magnesium?

A

Electrolysis

19
Q

Is electrolysis or Reduction used for aluminium?

A

Electrolysis

20
Q

Is electrolysis or Reduction used for zinc?

A

Reduction

21
Q

Is electrolysis or Reduction used for iron?

A

Reduction

22
Q

Is electrolysis or Reduction used for lead?

A

Reduction

23
Q

Is electrolysis or Reduction used for copper?

A

Reduction

24
Q

Is electrolysis or Reduction used for silver?

A

Neither the metal is native

25
Q

Is electrolysis or Reduction used for gold?

A

Neither the metal is native

26
Q

Is electrolysis or Reduction used for platinum?

A

Neither the metal is native

27
Q

Hydrochloric acid salt

A

Chloride

28
Q

Sulfuric acid salt

A

Sulfate

29
Q

Nitric acid salt

A

Nitrate

Chemistry (5 decks)

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