Neutralasation Flashcards by Izziexxxfrogz 🐸🥑

Q

What is neutralisation

A

The reaction between and acid and an alkali producing salt and water

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Q

What salt is formed when the acid is hydrochloric acid

A

Chloride e.g hydrochloric acid + calcium carbonate = calcium chloride

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Q

What salt is produced when the acid is sulphuric acid

A

Sulfate e.g sulphuric acid + calcium carbonate = calcium sulfate

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Q

What salt is produced when the acid is nitrtic acid n

A

Nitrate e.g nitric acid + calcium carbonate = calcium nitrate

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Q

What is soil treatment (neutralisation)

A

Plants grow best in ph7 soil so chemicals (lime) are added to raise the ph of acidic soil

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Q

What is indigestion (neutralisation)

A

Indigestion is when there is too much Hydrochloric acid in our stomach and the acid comes up the oesophagus to neutralise we take indigestion tablets

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Q

Metal + acid =

A

Salt + hydrogen

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Q

Acid + alkali =

A

Salt + water

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Q

Acid + base

A

Salt+ water

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Q

Acid + metal carbonate =

A

Salt + water + carbon dioxide

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Q

What is a .base

A

A substance that can react with an acid to neutralise it resulting in the formation of a salt and water. all alkalis are bases but not all bases are alakalis

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Q

What is an indicator

A

It’s a chemical that gives a colour change in acidic, alkaline and neutral solutions

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Q

What type of scale does the universal indicator use

A

Ph scale
1-6 acidic
7 neutral
8-14 alkaline

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Q

What are rhe colour changes of red litmus paper

A

Acid - red
Neutral - red
Alkaline - blue

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Q

What are rhe colour changes of blue litmus paper

A

Acid - red
Neutral - blue
Alkaline - blue

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Q

What are rhe colour changes of universal indicator

A

Acid - red
Neutral - Green
Alkaline - purple

Q

What are rhe colour changes of methyl orange

A

Acid - red
Neutral - orange
Alkaline- yellow orange

Q

What are rhe colour changes of screened methyl orange

A

Acid - orange -red
Neutral- Green
Alkaline - Green

Q

What are rhe colour changes of phenolphthalein

A

Acid - colourless
Neutral - colourless
Alkaline - pink

Q

What is an alkali

A

Is a soluble base

Q

What is a salt

A

A compound formed when some or all of the hydrogen ions in an acid are replaced by metal ions or ammonium ions

Q

What is a wasp sting and bee sting (neutralision)

A

If it’s a bee sting you but baking powder on it (alkaline)
If it’s a wasp sting you put vinegar (acidic)

Q

What is the difference between an alkali and alkaline?

A

An alkali is a water soluble base while an alkaline refers to the property of a solution having a pH greater than seven