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11 22 33 44 55 66 77 88 99

1010 1111 1212 1313 1414 1515 1616 1717 1818

1919 2020 2121 2424

88

23232222 2525 2626 2727

303029292828

Calderglen High School

Give an everyday example Give an everyday example of neutralisation.of neutralisation.

Reducing acidity in soil Reducing acidity in soil by adding lime, by adding lime,

treatment of acid treatment of acid indigestionindigestion

answer

1

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What is Neutralisation?

The reaction of The reaction of an acid with a an acid with a base to form base to form

waterwater

2

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What happens to the pH of an acid as it is neutralised?

The pH INCREASES to The pH INCREASES to 77

3

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Give some examples of neutralisers

Alkali (metal Alkali (metal hydroxide),hydroxide),

metal oxide, metal oxide, metal carbonatemetal carbonate

4

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Name the products of the reaction between a dilute

acid and an alkali

Salt and waterSalt and water

5

answer

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Name the products in the reaction between a dilute acid

and a metal carbonate.

Salt, water and carbon dioxide

6

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Name the salt produced when dilute hydrochloric acid reacts with copper carbonate

Copper Copper chloridechloride

7

answer

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Name the products of the reaction between a dilute acid

and a metal oxide

Salt and Salt and waterwater

8

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Name the products when Name the products when dilute sulphuric acid reacts dilute sulphuric acid reacts

with magnesiumwith magnesium

Magnesium Magnesium sulphate and sulphate and

hydrogenhydrogen

9

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What is the formula for

hydrochloric acidhydrochloric acid?

HCHCll

10

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What is the formula for

sulphuric acidsulphuric acid?

HH22SOSO44

11

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Name the products of the reaction between

potassium hydroxidepotassium hydroxide and dilute nitric acidnitric acid

potassium potassium nitrate and nitrate and

waterwater

12

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Which method is used to prepare insolubleinsoluble salts?

precipitatiprecipitationon

13

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Name the precipitate formed when barium nitrate solution and sodium sulphate solution

react together

Barium Barium sulphatesulphate

14

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NaOH + HNO3 NaNO3 + H2OIn a titration, 20cm3 of sodium hydroxide

was neutralised by 15cm3 of 0.2 mol/l nitric acid. Calculate the concentration of

the sodium hydroxide solution.

15

answerCVH+ (acid) = CVOH- (alkali)

0.2 x15x1 = Cx20x1

3= C x 20

C = 3/20 = 0.15 mol/l

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What is a basebase?

A substance which A substance which neutralises an acidneutralises an acid

16

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Give three examples of a base.

alkali (metal hydroxide)metal oxide

metal carbonate

17

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Identify the two bases.sodium chloride, sodium oxide,

calcium nitrate, copper carbonate

sodium oxide and copper carbonate

18

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Name the type of chemical type of chemical reactionreaction taking place when

copper oxide is added to dilute hydrochloric acid.

neutralisatineutralisationon

19

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What is formed when a base dissolves in water?

An alkaliAn alkali

20

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AgNO3 (aq) + NaCl (aq) AgCl (s) + NaNO3 (aq)

Name the typetype of chemical reaction taking place.

precipitatiprecipitationon

21

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AgNO3 (aq) + NaCl (aq) AgCl (s) + NaNO3 (aq)

Name the spectator ions

Nitrate NO-

3

Sodium Na+

22

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What happens to the pHpH of an acid when diluted with water?

It iinncreases to

7

23

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What happens to the pH of an

ALKALIALKALI when diluted with water ?

It ddeeccrreeaasseses to

7

24

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What happens to the acidityacidity of an acid when diluted with water ?

The acidity

decreases(less acidic)

25

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What happens to the alkalinityalkalinityof an alkali when diluted with

water?

It decreases -becomes less alkaline

26

answer

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What happens to the concentration concentration of Hof H++ ions in an acid when diluted with water?

The concentration

decreases

27

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What happens to the concentration of OHconcentration of OH-- ions in an

alkali when diluted with water ?

The concentration

decreases

28

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What is the formula for

nitric acidnitric acid?

HNOHNO33

29

answer

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What could you use to show you have reached the

end-point of a neutralisation reaction?

Use an Use an indicatindicat

oror

30

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