AQA GCSE Chemistry > C5 - Chemical Changes > Flashcards

C5 - Chemical Changes Flashcards

(19 cards)

Study These Flashcards
1
Q

Acid + metal ->

A

salt + hydrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Acid + metal oxide ->

A

salt + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Acid + metal carbonate ->

A

salt + carbon dioxide + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Acid + metal hydroxide ->

A

salt + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Acid + base ->

A

salt + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Acid + alkali ->

A

salt + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

D. Alkali?

A

A substance that has a pH value of more then 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

RQ. Method for titration? (6)

A
  • measure out vol. of alkali using bulb pipette (25cm3)
  • put alkali into conical flask
  • place acid in burette
  • add indicator (Phenolphthalein/ methyl orange) to alkali
  • add acid dropwise into flask unto neutralises (swirl)
  • repeat to get precise results
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

RQ. Safety measures for titrations? (2)

A
  • goggles

- fill burette below face-height/on the floor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

RQ. Method for making a salt?

A

[ for v. reactive element ]

  • Titration
  • heat neutral solution in evaporating dish until half is evaporated
  • let cool
  • remove crystals and dry
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What method should you use for making a salt from…

  • a non reactive metal
  • a metal of medium reactivity
A
  • combine metal and acid

- use metal hydroxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Ionic equation for neutralisation?

A

H+(aq)+OH-(aq) -> H2O(l)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

D. Base?

A
  • Substance that neutralise acids (the oxide, hydroxide or carbonate of a metal that reacts with an acid and forms as salt as one of its products
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What ions are bases acceptors of?

A

H+ ions / proton acceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a base that dissolves in water called?

A

an alkali

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are acids donors of?

Study These Flashcards
A

protons / H+ ion

17
Q

D. Acid?

Study These Flashcards
A

Substances that dissolve in water, and the solution then has a pH of <7

18
Q

What is formed when an acid dissolves in water?

Study These Flashcards
A

H+ ions and a negative ion

19
Q

You can use pH curves to….

Study These Flashcards
A

find the volume of acid that neutralises the alkali in a titration

AQA GCSE Chemistry
flashcards
Decks in class (13)
# Cards
Brainscape helps you reach your goals faster, through stronger study habits.
© 2026 Bold Learning Solutions. Terms and Conditions