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Chem Yr10 > Neutralisation > Flashcards

Neutralisation Flashcards

(23 cards)

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1
Q

What is a base?

A

Substance that reacts with acid producing salt and water
Alkalis are soluble bases
Alkalis- metal hydroxides
Bases- metal oxides

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2
Q

What’s an indicator?

A

Chemical that gives colour change in acidic, alkaline and neutral solutions.

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3
Q

What’s a salt?

A

Compound formed when some or all of the hydrogen ions in an acid are replaced by metal ions or ammonium ions.

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4
Q

What’s neutralisation?

A

reaction between an acid and alkali producing salt and water

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5
Q

Examples of neutralisation

A

Indigestion remedies
Lime in acidic soil
Baking powder on bee sting, vinegar on wasp sting

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6
Q

Give examples of types of indicators

A

Universal, phenolphthalein, methyl orange

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7
Q

Describe the colour of universal indicator in both alkali and acid

A

Alkali- purple
Acid- red

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8
Q

Describe the colour of phenolphthalein indicator in both alkali and acid

A

Alkali- pink
Acid- colourless

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9
Q

Describe the colour of methyl orange indicator in both alkali and acid

A

Alkali- yellow
Acid- red

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10
Q

What is different about methyl orange indicator to other indicators?

A

It’s limited in use as it is difficult to determine actual pH

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11
Q

Give the word equation for metals

A

Acid+Metal—>salt + hydrogen

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12
Q

Give the word equation for bases

A

Acid+alkali—>salt + water

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13
Q

Give the word equation for alkalis

A

Metal hydroxide+acid—>salt + water

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14
Q

Give the word equation for carbonates

A

Acid+metal carbonate—>salt + water + co2

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15
Q

What are the salts of acids hydrochloric acid, sulfuric acid + nitric acid

A

Chloride
Sulfate
Nitrate

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16
Q

Give 3 examples of acids

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A

Sulfuric acid, nitric acid and hydrochloric acid

17
Q

Give 3 examples of alkalis

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A

Sodium hydroxide, potassium hydroxide, ammonia

18
Q

Describe the properties of sulfuric acid

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A

Very unreactive, colourless, oily liquid

19
Q

Describe the properties of nitric acid

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A

Strong acid, colourless, highly corrosive

20
Q

Describe the properties of hydrochloric acid

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A

Strong acid, colourless, corrosive

21
Q

Describe the properties of sodium hydroxide

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A

Corrosive, colourless, odourless

22
Q

Describe the properties of potassium hydroxide

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A

Odourless, corrosive

23
Q

Describe the properties of ammonia

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A

Irritating gas with pungent, suffocating, corrosive odour

Chem Yr10 (3 decks)

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