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Chemistry > Unit 3 iv) Properties Of Metals > Flashcards

Unit 3 iv) Properties Of Metals Flashcards

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1
Q

What is metallic bonding?

A

The strong force of attraction between positively charged ions and delocalised electrons

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2
Q

What does a metal and acid produce?

A

Salt and Hydrogen

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3
Q

What does a metal and water produce?

A

Metal Hydroxide and Hydrogen

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4
Q

What metals in the ECS do not react with water?

A

Metals below magnesium

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5
Q

What does a metal and oxygen produce?

A

Metal Oxide

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6
Q

What metals in the ECS do not react with oxygen?

A

Metals below copper which are Mercury
Silver
Gold

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7
Q

What is the test for hydrogen?

A

It burns with a pop

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8
Q

Define OILRIG

A

Oxidation Is Loss Reduction Is Gain

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9
Q

Where are most metals obtained from?

A

Metal ores

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10
Q

What is an alloy?

A

A mixture of 2 or mole elements where at least one is a metal

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11
Q

What are the 3 ways to extract a metal from its ore?

A
  1. Heating Alone
  2. Heating with Carbon
  3. Electrolysis
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12
Q

What does finite mean?

A

It will run out

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13
Q

What is the test for oxygen?

A

Relights a glowing splint

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14
Q

What kind of reactions are extractions of metals?

A

Reduction

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15
Q

What are reducing agents?

A

Substances that help to reduce the metal ions during extraction from their ores

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16
Q

What is the equation for extraction by heat alone?

A

Metal oxide –> Metal + Oxygen

17
Q

What is the equation for extraction by heating with carbon/carbon monoxide?

A

Metal oxide + carbon –> metal + carbon dioxide

18
Q

What is the equation for extraction by electrolysis?

A

Metal ion + electrons –> Metal

19
Q

When does a displacement reaction occur?

A

When a metal higher in the ECS pushes out a metal lower in the ECS

20
Q

What is corrosion?

A

An oxidation reaction where an element reacts and forms a compound

21
Q

What is the corrosion of iron?

A

Rusting

22
Q

What is the chemical test for rust?

A

Ferroxyl indicator

23
Q

What colour does the indicator turn if rust is present?

A

Blue

24
Q

What colour does ferroxyl indicator turn in the presence of OH- ions?

A

Pink

25
Q

What are the 2 ways to speed up corrosion?

A
  1. Ionic solution

2. Attached to a metal lower in ECS

26
Q

The further apart 2 metals in the ECS are then…?

A

The higher the voltage

27
Q

What is the purpose of an ion bridge?

A

To complete the circuit

28
Q

What can and ion bridge be made of?

A

Filter paper soaked in ionic solution

29
Q

How do the electrons flow in a cell?

A

From the higher metal in the ECS to the lower metal through the wire

Chemistry (10 decks)

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