Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

IGCSE Chemistry > Acids, Bases and Salts > Flashcards

Acids, Bases and Salts Flashcards

1
Q

Ph scale

A

The pH scale is a measure of acidity or alkalinity of water soluble substances

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

Acids have what type of concentration

A

High concentration of hydrogen ions (H+) in aqueous

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

Bases have what type of concentration

A

High concentration of hydroxide ions (OH-) in aqueous

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

Ph indicators

A

Litmus paper and methyl orange

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

Litmus paper effects

A

Turns red in acid
Turns blue in alkali (soluble base)
No change in water

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

Methyl orange effects

A

Turns red in acid
Turns yellow in alkali (soluble base)
Orange in water (original colour)

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

Acid

A

A substance that generates hydrogen H+ ions in aqueous. It is a proton donor

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

Base

A

A substance that generates hydroxide ions (OH-) in aqueous. It is a proton acceptor.

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

Alkali

A

Soluble base

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

Neutralization

A

Neutralization is the process by which an acid and base react to form water

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

Insoluble bases

A

Metal oxides

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

Acid + Metal =

A

Salt + Hydrogen

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

Acid + base

A

Salt + water

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

Salt

A

Ionic compound

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

Acids + carbonates

A

Salt + Water + Carbon dioxide

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

Base + ammonium salts

A

Salt + water + ammonia

17
Q

Strong Acid

A

A strong acid will have a high concentration of H+ ions because the molecules are completely ionized in aqueous solution e.g HCL

18
Q

Strong base

A

A strong base will have a high concentration of OH- ions because the molecules are completely ionized in aqueous solution e.g NaOH

19
Q

Weak acid

A

A weak acid will have a low concentration of H+ ions because the molecules are partially ionized in aqueous solution e.g ethanoic acid
(denoted by double arrow)

20
Q

Weak base

A

A weak base will have a low concentration of OH- ions because the molecules are partially ionized in aqueous solution e.g ammonia
(denoted by double arrow)

21
Q

Non-metal oxides are usually

A

neutral or acidic

22
Q

What oxides do not react with acids or bases

A

Neutral oxides such as water, nitrogen (II) oxide, and carbon monoxide do not react with acids or bases

23
Q

What oxides neutralize bases

A

Acidic oxides such as sulphur dioxide, sulphur trioxide, carbon dioxide, and oxides of phosphorus will turn litmus paper red and neutralize bases

24
Q

Amphoteric Oxides

A

Amphoteric oxides react with either a base or acid to form salt and water. They have properties of both bases and acids.

25
Q

Test for ammonia

A

turns damp red litmus paper blue

26
Q

Test for carbon dioxide

A

turns lime water milky

27
Q

Test for chlorine

A

bleaches damp litmus paper

28
Q

Test for hydrogen

A

when mixed with air, goes “pop” with lighted splint

29
Q

Test for oxygen

A

Relights a glowing splint

IGCSE Chemistry (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions