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ReScience > Chapter 4 Reactivity of Metals > Flashcards

Chapter 4 Reactivity of Metals Flashcards

1
Q

What are minerals?

A

Minerals are solid elements of compounds present naturally with definite crystalline structures and chemical compositions

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2
Q

Examples of elements?

A

Gold
Silver
Mercury

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3
Q

What is the systematic name of Hematite and its element combination

A

Iron (III) Oxide, iron and oxygen

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4
Q

What is the systematic name of Cassiterite and its element combination

A

Tin (IV) Oxide, tin and oxygen

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5
Q

What is the systematic name for Quartz and its element combination?

A

Silicon Oxide, Silicon and oxygen

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6
Q

What is the systematic name for Bauxite and its element combination?

A

Aluminium Oxide, Aluminium and oxygen

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7
Q

What is the systematic name for Galena and its element combination?

A

Lead (II) Sulphide, lead and sulphur

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8
Q

What is the systematic name for Pyrite and its element combination?

A

Iron (II) Sulphide, iron and sulphur

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9
Q

What is the systematic name for Calcite and its element combination?

A

Calcium Carbonate, calcium, carbon and oxygen

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10
Q

What are the uses of limestone?

A

Construction of roads, buildings and table tops

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11
Q

What is the difference between a vigorous reaction and a less vigorous reaction?

A

A vigorous reaction produces a bright flame while a less vigorous reaction shows only a glow or a slow change in colour

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12
Q

What is the relationship between reactive metals and oxygen

A

The more reactive the metal is with oxygen, the more vigorous the reaction

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13
Q

What is the reactivity series of metals?

A

(i am not writing allat look at textbook)

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14
Q

What is the process of the extraction of metals?

A

It is a process to obtain metals from their ores

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15
Q

What are the 2 ways to extract metals?

A

Electrolysis and reduction of metal oxides with carbon

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16
Q

Why do gold and silver not have to be extracted?

A

Because they are not very reactive and dont chemically bond with other elements

17
Q

Examples of metals extracted through the reduction of metal oxides by carbon

A

Lead
Tin
Iron
Zinc

18
Q

Examples of metal extracted through electrolysis

A

Potassium, sodium, calcium, magnesium and aluminium

19
Q

What is coke in the process of metal extraction?

A

carbon

20
Q

What is the systematic name and chemical combination of slag

A

Calcium Silicate, Calcium oxide + Silicon Dioxide

21
Q

Explain the production of slag

A

Calcium carbonate decomposes into calcium oxide and calcium dioxide. Calcium oxide react with silicon dioxide in iron ore to form slag

22
Q

Examples of mining issues in Malaysia

A

Water pollution due to cleaning of ore
Air pollution due to burning of fuels
Sound Pollution from mining machinery

23
Q
A

ReScience (10 decks)

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