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chemistry yr10 > Neutralisation > Flashcards

Neutralisation Flashcards

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1
Q

What is the definition of neutralisation?

A

When an acid reacts to an alkali to produce a neutral solution of a salt and water - acid + alkali —> salt + water

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2
Q

When we use the following acids name the salt that is formed.
Hydrochloric acid -
Sulphuric acid -
Nitric acid -

A

Chloride
Sulphate
Nitrate

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3
Q 
Are the following a base or an alkali?
Sodium hydroxide - 
Calcium oxide - 
Magnesium hydroxide - 
Lithium oxide - 
Copper oxide -
A 
Base
Alkali
Base
Base
Base
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4
Q

Plants grow best at…

Chemicals like… added to neutralise ph

A

Ph7

Lime

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5
Q

Indigestion - hydrochloric acid in our stomach - too much acid.
Use a… to neutralise.

A

Base (indigestion tablet)

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6
Q

Insect stings - bee sting is… - neutralise with…

A

Acidic

Alkali eg. Baking soda

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7
Q

Wasp sting is… - neutralise with…

A

Alkaline

Acid eg. Vinegar

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8
Q

Acid + metal = ______
Acid + alkali = ______
Acid + base = ______
Acid + metal carbonate = ______

A

Salt + hydrogen
Salt + water
Salt + water
Salt + water + carbon dioxide

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9
Q

Potassium + sulfuric acid =

A

Potassium sulphate + water

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10
Q

Hydrochloric acid + sodium oxide =

A

Sodium chloride + water

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11
Q

Copper carbonate + sulfuric acid =

A

Copper sulphate + water + carbon dioxide

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12
Q

Zinc + nitric acid =

A

Zinc nitrate + hydrogen

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13
Q

Copper oxide + sulfuric acid =

A

Copper sulphate + salt + water

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14
Q

What colour does red litmus paper turn in…
Hydrochloric acid
Water
Sodium hydroxide

A

Red
Red
Blue

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15
Q

What colour does blue litmus paper turn in…
Hydrochloric acid
Water
Sodium hydroxide

A

Red
Blue
Blue

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16
Q

What colour does universal indicator solution turn in..
Hydrochloric acid
Water
Sodium hydroxide

A

Red
Green
Purple

17
Q

What colour does method orange turn when out in…
Hydrochloric acid
Water
Sodium hydroxide

A

Red
Orange
Yellow-orange

18
Q

What colour does screened methyl orange turn in…
Hydrochloric acid
Water
Sodium hydroxide

A

Orange-red
Green
Green

19
Q

What colour does phenolphthalein turn when out in…
Hydrochloric acid
Water
Sodium hydroxide

A

Colourless
Colourless
Pink

20
Q

Look at pg six of booklet

A

…

21
Q

Hydrochloride acid + potassium hydroxide =

A

Potassium chloride + acid

22
Q

Sulfuric acid + potassium hydroxide =

A

Potassium sulphate + acid

23
Q

Hydrochloric acid + calcium carbonate =

A

Calcium chloride + acid

24
Q

Hydrochloric acid + zinc =

A

Zinc chloride + hydrogen

25
Q

What’s the is general equation for the reaction between an acid and a metal

A

Acid + metal = salt + water

26
Q

How is indigestion caused?

A

Caused by stomach acid coming into contact with the sensitive, protective lining of the digestive system

27
Q

What salt is used when magnesium oxide is used to neutralise stomach acid?

A

Chloride salt

28
Q

What type of chemical is copper oxide?

A

Base

29
Q

Sulfuric acid + copper oxide =

A

Copper sulfate + water

chemistry yr10 (4 decks)

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