Year 7 Sum2 Acids And Alkalis Flashcards

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1
Q

Acid

A

a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind.

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2
Q

Alkali

A

a compound with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids; typically, a caustic or corrosive substance of this kind such as lime or soda.

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3
Q

Corrosive

A

A substance that can burn through another substance

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4
Q

Concentrated

A

Concentrated means when something has less water than the main ingredient

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5
Q

Dilute

A

It is when a liquid has more water in it than the main ingredient

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6
Q

Indicator

A

Something that tells you how strong an acid or alkali is.

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7
Q

pH scale

A

The scale that tells you how strong an acid or alkali is. 7 is neutral, 0 is the strongest acid, 14 is the strongest alkali.

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8
Q

Neutralisation

A

Neutralisation is when you use an acid and an alkali is make a neutral liquid. If you had pH 0 acid you would balance that out with pH 14

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9
Q

Salt

A

If you neutralise something you have 2 bi-products, water and salt.

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