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Science revision > Acidity and alkalinity > Flashcards

Acidity and alkalinity Flashcards

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Biology 101 flashcards
1
Q

describe Acid

A

Acid has a pH lower than 7,taste sour and sharp,reacts with metal and turns the litmus paper red.

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2
Q

describe base

A

A base has pH higher than 7, taste bitter and harsh,does not react with metal and turns litmus paper blue.

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3
Q

Describe a neutral substance

A

has a pH of 7 and does not change the colour of litmus paper.

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4
Q

does water have a pH of 7? is it neutral?

A

yes and yes

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Science revision (5 decks)

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