Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Chemitry - just trying to pass :( > Acids, bases and salts ✅ > Flashcards

Acids, bases and salts ✅ Flashcards

(72 cards)

Start Studying
1
Q

definition of indicator

A

a chemical that gives a colour change in acidic alkaline and neutral solutions

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

how should corrosive substances be handled

A

safety glasses, gloves, lab coat

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

how should toxic substances be handled

A

used in a fume cupboard

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

how should flammable substances be handled

A

there should be no naked flames

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

how should substances labelled as cautious be handled

A

personal protective equipment
avoid spills

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

how do we test for gasses

A

using damp indicator paper held in the gas

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

what colour is phenolphthalein in acid, neutral and alkaline

A

acid - colourless
neutral - colourless
alkaline - pink

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

what colour does methyl orange turn in acid, neutral and alkaline

A

acid - red
neutral - orange
alkaline - yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what colour does red litmus paper turn in acid, neutral and alkaline

A

acid - red
neutral - red
alkaline - blue

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

what colour does blue litmus paper turn in acid, neutral and alkaline

A

acid - red
neutral - blue
alkaline - blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the concentration of solutions measured in

A

moles per dm3

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

what does pH 7 mean

A

neutral

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

what does pH less than 7 mean

A

acidic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does pH more than 7 mean

A

alkaline

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

what is hydrochloric acid

A

HCl

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

what is sulfuric acid

A

H2SO4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is ethanoic acid

A

CH3COOH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is carbonic acid

A

H2CO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is nitric acid

A

HNO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is the difference between a strong acid and weak acid in water

A

a strong acid COMPLETELY ionises in water
a weak acid PARTIALLY ionises in water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what is ammonia

A

NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is sodium hydroxide

A

NaOH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is neutralisation

A

the reaction between an acid and an alkali that produces a salt and water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

whats a base

A

a substance that reacts with an acid, producing a salt and water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what type of base is an alkali
a soluble base
26
what do acids produce when they react
salts
27
what do acids solutions contain
hydrogen ions and a negative ion
28
what does HCl contain
hydrogen ions and chloride ions, so when it reacts it forms a chloride
29
what does H2SO4 contain
hydrogen ions and sulfate ions
30
what does HNO3 contain
hydrogen ions and nirate ions
31
what does ethanoic acid contain
hydrogen ions and ethanoate ions
32
general word equation for acids and metals
metal + acid -->salt + hydrogen
33
what is a salt
formed when some or all of the hydrogen ions in an acid are replaced by metal ions or ammonium ions
34
general word equation for acid + metal OXIDE
acid + metal oxide --> salt + water
35
general word equation for acid + metal HYDROXIDE
acid + metal hydroxide --> salt + water
36
general word equation for acid + metal CARBONATE
metal carbonate + acid --> salt + Co2 + water
37
general word equation for acid + metal HYDROGENCARBONATE
metal hydrocarbonate + acid --> salt + Co2 + water
38
name the products of the reaction between sodium carbonate and sulfuric acid
sodium sulfate, carbon dioxide, water
39
what is used to test for carbon dioxide
limewater/calcium hydroxide solution
40
name the salt formed in the reaction between sodium hydroxide and nitric acid
sodium nitrate
41
if carbon dioxide is present what colour will limewater change to
from colourless to milky
42
what is the name of this test
Testing for Carbon dioxide
43
General word equation for ammonia + acid
Ammonia + acid --> ammonium salt
44
a dilute solution contains a _____ number of particles dissolved per unit volume
small
45
what is neutralisation
the reaction between and acid and alkali producing a salt and water
46
word equation for neutralisation
acid + alkali -> salt + water
47
what type of ions do all acids contain
H+ ions - hydrogen ions
48
what type of ions do all alkalis contain
OH- ions - hydroxide ions
49
what happened when acids and alkalis react?
the hydrogen and hydroxide ions form water
50
ionic equation for neutralisation
H + OH–> H2O
51
what salt does sulfuric acid form
sulfates
52
what salt does hydrochloric acid form
chlorides
53
what salt does nitric acid form
nitrates
54
what’s the test for hydrogen what is the symbol equation for it
lighted splint burns with a pop 2H² + O² –> 2H²O
55
what observations are observed when Mg reacts with H2SO4
fast reaction heat given out bubbles of gas formed magnesium disappears colourless solution formed
56
what observations are observed when Mg reacts with HCl
fast reaction heat given out bubbles of gas formed magnesium disappears colourless solution formed
57
what observations are observed when Zn reacts with H2SO4
slow reaction few bubbles heat given out
58
what observations are observed when Zn reacts with HCl
slow reaction few bubbles heat given out
59
what observations are observed when Cu reacts with H2SO4
No reaction
60
what colour is Copper (II) Oxide
black solid
61
what colour is Magnesium Oxide
White solid
62
observations when H2SO4 reacts with copper (II) oxide
black solid disappears BLUE solution forms
63
observations when H2SO4 reacts with magnesium oxide
white solid disappears COLOURLESS solution forms
64
observations when HCl reacts with copper (II) oxide
black solid disappears GREEN solution forms
65
observations when HCl reacts with magnesium oxide
white solid disappears COLOURLESS solution forms
66
observations when HNO3 reacts with copper (II) oxide
black solid dissappears blue solution forms
67
observations when HNO3 reacts with magnesium oxide
white solid disappears colourless solution forms
68
what does a concentrated solution contain (how many particles dissolved)
a large number of particles dissolved per unit volume
69
what does a dilute solution contain (how many particles dissolved)
a small number of particles dissolved per unit volume (more water particles)
70
why is copper (ii) oxide described as a base and not an alkali
because its insoluble and doesn't dissolve in water
71
why's neutralisation important to farmers
to cure acidic soil
72
what do farmers use to neutralise over-acidic soils
lime

Chemitry - just trying to pass :( (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions