Properties of Acids and Bases

Have a sour taste, e.g. citrus or vinegar

Cause color change: blue →  red

react with some metals to make hydrogen gas

reacts with carbonates and bicarbonates to make CO2 gas, e.g. vinegar and baking soda. 

Are electrolytes

Have a bitter taste

Feel slipper, e.g. soap contains bases

Causes color change: red → blue

Are electrolytes