Fechar
WHAT IS ACID?
WHATT ISSS ALKALI??
what is alkaline solution?
what is base?
what is Hydrogen ion
what is Hydroxide ion?
Litmus paper
what is Indicator?
what is pH?
Name 2 properties of acid.
Name 3 chemical properties of bases.
Why does a bite from bull ant hurt?
what happens when a blue litmus paper touches acid.
