Chemistry: Acids and Alkalis Flashcards

1
Q

What is an Acid?

A

A substance that gives out Hydrogen ions H+ in a solution…

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2
Q

name 4 common Acids..

A

a) sulphuric acid
b) nitric acid
c) ethanoic acid
d) hydrochloric acid

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3
Q

name 4 common bases..

A

a) sodium hydroxide
b) potassium hydroxide
c) calcium hydroxide
d) ammonia

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4
Q

What is a Base?

A

A substance that reacts with acids to form a salt

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5
Q

What is an Alkali?

A

A soluble base.

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6
Q

the formulae of sulphuric acid

A

H2 SO4

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7
Q

the formulae of nitric acid

A

HNO3

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8
Q

the formulae of ethanoic acid

A

CH3 COOH

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9
Q

the formulae of hydrochloric acid

A

HCL

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10
Q

the formulae of sodium hydroxide

A

NaOH

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11
Q

the formulae of potassium hydroxide

A

KOH

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12
Q

the formulae of calcium hydroxide

A

Ca(OH)2

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13
Q

the formulae of ammonia

A

NH3

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14
Q

What is neutralisation?

A

Type of chemical reaction in which acids react with a base to form a salt

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15
Q

What is the acid ending for hydrochloric

A

Chloride

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16
Q

What is the acid ending for sulphuric

A

sulphate

17
Q

What is the acid ending for nitric

A

nitrate

18
Q

What is the acid ending for ethanoic

A

ethanoate

19
Q

What does a PH scale show?

A

It shows how acidic or alkaline a solution is

20
Q

What is an indicator?

A

A substance that changes colour depending on whether it is added to acid or alkali

21
Q

What does the general equation acid+ metal oxide =

A

Salt+ water

22
Q

What is the general equation for acid + metal =

A

Salt+ Hydrogen

23
Q

What is the test for H2 gas

A

Squeaky pop test Burning splint

24
Q

What is the general equation for acid+ metal carbonate

A

Salt+ water+ Carbon dioxide

25
Q

What is the test for Co2 gas

A

By using limewater

26
Q

What is the general equation for Acid+ Metal hydroxide

A

Salt+ water

27
Q

What is Titration???

A

A technique that allows you to work out the concentration of an acid or alkali

28
Q

What do all acids have in common???

A

They have a PH lower than 7

29
Q

What do all alkalis have in common???

A

They have a PH higher than 7

30
Q

Vinegar is???

A

Ethanoic