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Chemistry > Acids, Bases and Metals > Flashcards

Acids, Bases and Metals Flashcards

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1
Q

What is a solution?

A

A mixture formed when a solute dissolves in a solvent

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2
Q

What is a solute?

A

The substance that is dissolved

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3
Q

What is a solvent?

A

The liquid that does the dissolving

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4
Q

A neutral solution has a what concentration of H+ and OH- ions?

A

Neutral

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5
Q

Acidic solutions have a greater concentration of what?

A

They have a greater concentration of H+ ions than OH-

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6
Q

Alkaline solutions have a greater concentration of what?

A

They have a greater concentration of OH- ions than H+

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7
Q

The pH of an acidic/alkaline solution heads towards pH 7 when diluted with water

A
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8
Q

Diluting an acidic solution with water will..?

A

Decrease the concentration of H+ ions and increase the pH towards 7

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9
Q

Diluting an alkaline solution with water will..?

A

Decrease the concentration of OH- ions and decrease the pH towards 7

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10
Q

Soluble, non-metal substances form what in water?

A

Acidic solutions

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11
Q

Soluble, metal substances form what in water?

A

Alkaline solutions

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12
Q

Insoluble substances form what in water?

A

They don’t affect the pH of the water, (appears neutral)

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13
Q

What are the 4 bases I need to know? (also bases neutralise acids)

A

Metal oxides, metal carbonates, metal hydroxides and ammonia

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14
Q

A neutralisation reaction is?

A

Where a base reacts with an acid to form water

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15
Q

Acid + metal oxide&raquo_space;

A

Salt + water

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16
Q

Acid + hydroxide&raquo_space;

A

Salt + water

17
Q

Acid + carbonate&raquo_space;

A

Salt + water + carbon dioxide

18
Q

What is the reactivity series?

A

A series of the reactivity of metals with water, acid and oxygen

19
Q

Acid (ions)

A

greater concentration of H+ ions than OH- ions

20
Q

Alkaline

A

greater concentration of OH- ions than H+ ions

21
Q

What is a precipitate?

A

A solid or insoluble product formed from solutions during a reaction

22
Q

What is a salt?

A

A compound made when the H+ ions of an acid are replaced by metal ions or ammonium ions

23
Q

What is a titration?

A

An experimental method used to accurately determine the concentration of an unknown acid or alkali solution. It can also be used to prepare soluble salts

24
Q

What is a neutralisation reaction?

A

A reaction in which an acid and base react to form salt and water

25
Q

What is a base?

A

A substance which reacts to neutralise an acid

26
Q

What isba dissociation?

A

When a substance separates into positive and negative ions in solution

Chemistry (7 decks)

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