C1 Topic 2- Acids, Neutalisations And Obtaining Metals Flashcards

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0
Q

Product of Acid+Base

A

Acid+Base > Sodium+H2O

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1
Q

Why is hydrochloride acid produced by the human stomach?

A

Hydrochloride acid is produced by the human stomach because it helps the digestive system by breaking down protein and it kills bacteria.

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2
Q

Product of Acid+Carbonate

A

Acid+Carbonate > Carbon dioxide+H2O

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3
Q

What is electrolysis used for?

A

Electrolysis is used to make chlorine gas, hydrogen gas and oxygen gas.
chemical decomposition produced by passing an electric current through a liquid or solution containing ions.

the removal of hair roots or small blemishes on the skin by the application of heat using an electric current.

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4
Q

Describe the Chlorine Test

A

Dip a damp piece of litmus paper into a test tube. If it’s chlorine it will bleach the paper white

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5
Q

Describe the Hydrogen Test

A

Squeaky Pop Test

Place a lightened splint into the test tube. If it hydrogen it will make ‘squeaky pop’ sound

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6
Q

Name the products of Electrolysis of Dilute Hydrochloric Acid

A

H2 and Cl2

Hydrogen and Chlorine

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7
Q

Product of Electrolysis of Brine (Salt/Sea Water)

A

Sodium Hydroxide (NaOH)
Hydrogen (H2)
Chlorine (Cl)

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8
Q

3 uses of Chlorine

A

Treats Water Supplies
Bleach Manufacturing
Makes Polymer Poly(chloroethene)

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9
Q

What are the products of Water Electrolysis?

A
Hydrogen Gas (H2)
Oxygen Gas (O2)
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10
Q

Oxygen Test

A

Light a splint, blow it out, put it in the test tube if it delights it oxygen

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11
Q

Iron is extracted from its Ore how?

A

By heating it with carbon (it has a lower reactivity than carbon)

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12
Q

Aluminium is extracted by what?

A

Electrolysis (it has a higher reactivity than carbon)

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13
Q

Reactivity Series

A
Potassium (K)
Sodium (Na)
Calcium (Ca) 
Magnesium (Mg) 
Aluminium (Al)
 Carbon (C)
Zinc (Zn)
Iron (Fe) 
Tin (Sn)
Lead (Pb)
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14
Q

Which Metals use Electrolysis to be extracted from their ores?
(Highest to lowest order)

A
Potassium (K)
Sodium (Na)
Calcium (Cl)
Magnesium (Mg) 
Aluminium (Al)
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15
Q

Which metals need to be extracted from their Ores by being heated with Carbon?

A

Zinc (Zn)
Iron (Fe)
Tin (Sn)
Lead (Pb)

16
Q

Why are some metals extracted via Electrolysis and other through being heated with Carbon?

A

Electrolysis is used to extract metals with a higher reactivity than carbon.
Heating metals with Carbon is used to extract metals with a lower reactivity than carbon.

17
Q

What are the environmental advantages of recycling metals?

A

It uses less resources (finite amount of metal, conserves resources)
It uses less energy ( mining, extracting metals, burning fossil fuels=lot)
It uses less money (energy isn’t cheap, saves money)
It makes less waste ( cuts amount going to landfill, space, pollution)