Question

what are 4 propertie of a base

Answer 1

- Slimy or soapy feel on fingers, due to saponification of the lipids in human skin
-Concentrated or strong bases are caustic (corrosive) on organic matter and react violently with acidic substances
-Bitter taste
-pH>7
-Aqueous solutions or molten bases dissociate in ions and conduct electricity.
-Reactions with indicators: bases turn red litmus paper blue and phenolphthalein pink

Answer 2

Most primitive properties:
Acids:
1.turn blue litmus red
2.Liberate hydrogen when react with active metals..
3.are sour to taste
4.react with a base to from water and salt.

Bases:
1.turn red litmus blue
2.are soapy to touch
3.are bitter in taste
4.react with a acid to from water and salt.