Chemistry - Acids, bases and salts

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What do acids always have a PH of?
Less than 7.
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What are bases when dissoved in water?
Alkalis
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What bases (alkalis) always have a PH of?
More than 7.
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Complete the equation. Acid + Base =
Salt +Water.
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Stronger the acid, the what the PH number?
Lower.
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What colour do acidic solutions turn when strong and when weak?
Red when strong and orange/yellow when weak.
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What colour do alkaline solutions turn when strong and when weak?
Dark blue/purple when strong and bluey green when weak.
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The stronger the alkaline, the what the PH number?
Higher.
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What PH number do neutral solutions have and what colour do they turn?
PH 7 and green.
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What happens in neutralisation?
Hydrogen formed by acids reacts with hydroxide formed by alkalis to make water.
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Complete the equation. Acid + Metal =
Salt + Hydrogen.
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How do we predict the name of the salt produced in neutralisation?
First part is the name of the base/name of the metal base and the second part is the name of the acid used.
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What would the acid be second part when the the acid is hydrochloric, nitratic and sulphuric respectively?
Chloride, nitrate and sulphate
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What do soluble salts do?
Dissolve in water.
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Other cards in this set

Card 2

Front

What are bases when dissoved in water?

Back

Alkalis

Card 3

Front

What bases (alkalis) always have a PH of?

Back

Preview of the front of card 3

Card 4

Front

Complete the equation. Acid + Base =

Back

Preview of the front of card 4

Card 5

Front

Stronger the acid, the what the PH number?

Back

Preview of the front of card 5
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