Acids and bases Flashcards
0
Q
Properties of a base
A
- caustic
- feel soapy, slimy
- turn red litmus paper blue
- have bitter taste
- conduct electricity
- neutralised by acids
1
Q
Properties of an Acid
A
- Corrosive
- Sour taste
- turn blue litmus paper red
- react with some metals, releasing hydrogen gas and leaving salt behind.
- conduct electricity
- naturalised by bases, producing water and salt.
2
Q
What is pH?
A
The concentration of hydrogen ions (H+) in a solution is measured using the pH scale.
3
Q
pH of acids?
A
acids have a pH less than 7 (7 is neutral)
4
Q
pH of bases?
A
More than 7
