Acids, Alkalis And Salts Flashcards

1
Q

What is the pH scale

A

The pH scale, from 0-14 , can be used to classify solutions we strongly acidic, weakly acidic, neutral, weakly alkaline or strongly alkaline

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

What is the use of the universal indicator

A

To measure the approximate pH value of a solution

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

What are acids

A

Sources of hydrogen ions , H+

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

What are alkalis

A

Sources of hydroxide ions, OH-

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

Hydrochloride acid + metal ->

A

Metal chloride salt + hydrogen

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

Sulfuric acid + metal ->

A

Metal sulphate + hydrogen

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

Hydrochloric acid + metal oxide ->

A

Metal chloride salt + water

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

Nitric acid + metal oxide ->

A

Metal nitrate salt + water

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

Sulphuric acid + metal oxide ->

A

Metal sulfate + water

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

Hydrochloride acid + metal carbonate

A

-> metal chloride salt + water + carbon dioxide

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

Nitric acid + metal carbonate ->

A

Metal nitrate salt + water + CO2

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

Sulphuric acid + metal carbonate ->

A

Metal sulfate + water + CO2

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

All common sodium, potassium and ammonium salts are

A

Soluble

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

All nitrates are

A

Soluble

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

Common chlorides are………..except…….

A

Soluble except solve chloride

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

Common sulfates are …….. Except ……..

A

Soluble except barium and calcium

17
Q

Common carbonates are ………except ……….

A

Insoluble except sodium, potassium and ammonium

18
Q

Describe experiments to prepare insoluble salts using precipitation reactions

A

Silver nitrate and sodium chloride are added together,
the product, silver chloride is made,
This salt is insoluble and so will form a white precipitate in the solution

19
Q

Describe experiments to prepare soluble salts from acids

A

Dilute sulphuric acid is added to an excess of magnesium. (Mg + H2SO4 -> MGSO4 + H2)
The left over magnesium is filtered off and the mixture is boiled down slowly to concentrate.
When it is cooked, crystals will form, these can be blotted dry with a piece of paper

20
Q

Nitric sulfuric and hydrochloric acids make soluble salts with

A

Most metals

21
Q

Ammonium, potassium and sodium make soluble sale with

A

Acids

22
Q

What is used to distinguish between acid and alkaline solutions

A

Indicators litmus, phenolphthalein and methyl orange