Acids Flashcards
1
Q
Definition of an acid
A
A chemical substance that neutralises alkalis, dissolves some metals and turns litmus paper red. Typically corrosive or a sour tasting liquid
2
Q
Indicators
A
Litmus paper, universal indicator, methyl orange and phenolphtalein
3
Q
pH scale
A
(acidic) 0 1 2 3 4 5 6 (neutral) 7 (alkaline) 8 9 10 11 12 13 14
4
Q
Colours in pH
A
Litmus turns red in acids and stays blue in alkalis
Universal turns red in acid and purple in alkali