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Chemistry > C8 Acids and Alkalis > Flashcards

C8 Acids and Alkalis Flashcards

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1
Q

Metal + acid =

A

Salt + hydrogen

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2
Q

base + acid =

A

salt + water

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3
Q

alkali + acid=

A

salt + water

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4
Q

carbonate + acid =

A

salt+water+carbon dioxide

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5
Q

Salts formed from hydrochloric acids

A

chloride

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6
Q

Salts formed from nitric acids

A

nitrate

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7
Q

Salts formed from sulphuric acids

A

Sulphate

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8
Q

Salts formed from ethanoic acids

A

ethanoate

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9
Q

Formula for nitric acid

A

NO*3

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10
Q

Formula for potassium sulfate

A

K2 SO4

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11
Q

Formula for ammonium carbonate

A

(NH4) CO3

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12
Q

Formula for magnesium nitrate

A

Mg (NO*3)

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13
Q

Describe the test to identify hydrogen

A

Put a lit splint inside a test tube. If there is hydrogen present, there will be a squeaky pop sound.

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14
Q

Describe the test to identify carbon dioxide

A

If lime water in a particular place turns cloudy, there is carbon dioxide present

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15
Q

The method used to produce a solution of a soluble salt from a dilute acid and alkali

A

Neutralisation

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16
Q

Litmus paper reaction to pH

A

Red in acid
Blue in alkali

17
Q

Methyl orange reaction to pH

A

Red in acid
Yellow when neutral or in alkali

18
Q

Phenolphthalein reaction to pH

A

Colourless in acid
Pink in alkali

19
Q

Universal indicator reaction to pH

A

If it is acid it will go from dark red (most acidic, 1) to light green (slightly acidic, 6)
If it is alkali it will go from very dark blue (most alkalinic, 14) to blue (slightly alkalinic, 8)

20
Q

What is a strong acid?

A

A completely ionised acid in aqueous solution.
It also has a higher concentration of hydrogen ions.

21
Q

What is a weak acid?

A

A partially ionised acid in aqueous solution
It has a lower concentration pf ions.

22
Q

In an Ionic equation what is important?

A

The ion that change state/react are important.
All other ions present are known as spectator ions.

23
Q

what does Copper oxide + sulfuric acid look like

A

Copper oxide (black) + sulfuric acid (colourless) = a blue liquid/solution

24
Q
A

Chemistry (10 decks)

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