Unit 2- Acids, Bases And Salts Flashcards

1
Q

What ions makes solutions acidic? And ions that make solutions alkali?

A

Acidic: H+ ions
Alkali: OH- ions

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2
Q

What does and Acid + base make?

A

Salt + water

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3
Q

What does acid + metal make?

A

Salt + hydrogen

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4
Q

What salt would hydrochloric acid and copper oxide form?

A

Copper chloride

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5
Q

What do metals or insoluble bases react to make?

A

Soluble salts

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6
Q

What are the three steps in crystallisation?

A

1) mix an acid and another substance
2) filter out the liquid
3) evaporate excess liquid

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7
Q

What do you make soluble salts with?

A

Alkali

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8
Q

How do you make a soluble salt using alkali?

A

Add right amount of acid to neutralise alkali, us indicator to make sure. Then keep adding acid and alkali to uncontaminate it. Then evapourate

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9
Q

What do precipitation reactions make?

A

Insoluble salts

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10
Q

What happens in a precipitation reaction?

A

Mix the ions in the solution and let them precipitate to the bottom, filter out the liquid

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11
Q

What is an alkali?

A

A base that dissolves in water

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