Respuesta :

SJ2006

Bitter taste (opposed to sour taste of acids)

Slimy, or soapy feel on fingers.

Many bases react with acids and precipitate salts.

Strong bases may react violently with acids. ...

Bases turn red litmus paper blue.

Bases are substances that contain metal oxides or hydroxides.

Michaelia
Base's physical characteristics:
1) Bitter in taste
2) Soapy feeling (in shampoo or body wash)
3) pH>7

Base's chemical characteristics:
1) BASW ( Base reacts with Acid to form Salt and Water)
2) Ability to turn moist red litmus paper blue due to its basic properties. (pH>7)
3) IMPORTANTLY is that it dissociate Into OH- ions or hydroxide ion when dissolved in water! (For alkali)

Alkali is SOLUBLE salt. Most bases are insoluble.