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Science 2nd Year > Acids And Bases 2 > Flashcards

Acids And Bases 2 Flashcards

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1
Q

What is the chemical formula for calcium hydroxide?

A

Ca(OH)2

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2
Q

What is neutralisation?

A

Is when an acid and a base react to form a neutral substance

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3
Q

What is the chemical formula for sodium hydroxide?

A

NaOH

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4
Q

What is the chemical formula for ammonia?

A

NH3

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5
Q

What is the chemical formula for hydrochloric acid?

A

HCL

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6
Q

What is the chemical formula for sulphuric acid?

A

H2SO4

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7
Q

What is the chemical formula for nitric acid?

A

HNO3

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8
Q

How is the reaction between acids and bases represented?

A

Acid + Base ——> Salt + Water

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9
Q

How a salt formed?

A

A salt is formed when the hydrogen in an acid is replaced by a metal

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10
Q

What is titration?

A

Titration is the method of adding one solution from a burette to another solution in order to find out how much of the two solutions will just react with each other.

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11
Q

What is a fuel?

A

Any substance that burns in oxygen to produce heat.

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12
Q

Name some examples of solid fuels.

A

Coal, turf and wood.

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13
Q

Name some examples of liquid fuels.

A

Petrol, diesel and paraffin oil.

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14
Q

How was coal formed?

A

Hundreds of years ago trees grew on swampy land, trapping the sun’s energy by photosynthesis. When the plants died, layers of earth and rock pressed them down to form coal. Coal is a fossil fuels.

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15
Q

How were oil and natural gas formed?

A

The pressure of the earth and sea on decaying sea creature remains turned them into oil and natural gas. They fossil fuels.

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16
Q

What are fossil fuels?

A

Fossil fuels are fuels that were formed from the remains of plants and animals that lived millions of years ago.

17
Q

What are hydrocarbons?

A

Hydrocarbons are in fossil fuels. They are compounds consisting of hydrogen and carbon only.

18
Q

How is the reaction between fossil fuels and oxygen shown?

A

Fossil Fuels + Oxygen ——-> Carbon Dioxide + Water

19
Q

What is acid rain?

A

Acid rain is rainwater that has a pH less then 5.5. This rain contains diluted sulphuric acid and nitric acid.

20
Q

What are the problems with acid rain?

A

Acid rain; destroys lakes and kills fish by washing aluminium salts into waters, harms trees by damaging foliage and removing minerals from the soil and it wears down limestone.

21
Q

What are the solutions to acid rain?

A

H

Science 2nd Year (18 decks)

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