Acids, bases and salts Flashcards
1
Q
What is the role of the pH scale?
A
pH scale is used to show the acidity or alkalinity of a solution
2
Q
What is an acid? (2)
A
Substance that form hydrogen ions when dissolved in water
proton donor
3
Q
metal + acid →
A
salt + hydrogen
4
Q
alkali + acid →
A
salt + water
5
Q
What type of reaction is an metal + acid reaction?
A
redox reaction
6
Q
metal hydroxide + acid →
A
salt + water
7
Q
metal carbonate + acid →
A
salt + water + carbon dioxide
8
Q
What is a base that is soluble in water?
A
Alkali
9
Q
acid + base →
A
salt + water
10
Q
Ammonia salts are much more _ than metal salts
A
volatile
11
Q
alkali + ammonium salt →
A
metal salt + ammonia + water
