8. Acids, Bases and Salts Flashcards by Zoe W | Brainscape

Q

Litmus in base

A

Blue

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Q

Litmus in acid

A

Red

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Q

Phenolphthalein in base

A

Pink

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Q

Phenolphthalein in acid

A

Colourless

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Q

Methyl Orange in base

A

Yellow

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Q

Methyl Orange in neutral

A

Orange

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Q

Methyl Orange in acid

A

Red

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Q

Universal Indicator in acid

A

Red

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Q

Universal Indicator in neutral

A

Green

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Q

Universal Indicator in base

A

Purple

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Q

pH 0-2

A

strongly acidic [red]

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Q

pH 3-6

A

weakly acidic [orange-yellow]

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Q

pH 7

A

neutral [green]

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Q

pH 8-11

A

weakly alkaline [blue]

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Q

pH 12-14

A

strongly alkaline [purple]

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Q

Acids in aq solution are a source of ___ ions

A

H+

Q

Alkalis in aq solution are a source of ___ ions

A

OH-

Q

Acid + Alkaline

A

neutralisation

Q

Acid is a proton ___

A

Donor

Q

Base is a proton___

A

Acceptor

Q

Solubility: Nitrates

A

Soluble

Q

Solubility: Sodium

A

Soluble

Q

Solubility: Ammonium

A

Soluble

Q

Solubility: Potassium

A

Soluble

Q

Solubility: Chlorides

A

Soluble [except Silver and Lead]

Q

Solubility: Sulfates

A

Soluble [except Barium, Calcium and Lead]

Q

Solubility: Carbonates

A

Insoluble [except SAP]

Q

Solubility: Hydroxides

A

Insoluble [except SAP]

Q

Precipitate

A

Reaction where an insoluble product is made when mixing two soluble solutions

Q

Neutralisation

A

Acid and base react to form salt + water

Q

Metal + acid

A

salt + hydrogen [H2]

Q

Metal oxide + acid

A

salt + water

Q

Metal hydroxide + acid

A

salt + water

Q

Metal carbonate + acid

A

salt+ water + carbon dioxide

Q

Ammonia + acid

A

Only salt

Q

Crystallisation experiment method

A

Heat
Add excess of solid
Filter
Heat again
Evaporate some water
Leave to crystallise
Dry with paper towel

Q

H+(aq) + OH- (aq) ->

A

H2O (l)

Q

A