Acids and bases Flashcards
What is an acid?
Has a ph>7 Dissolves in water Turns red in litmus also in UI They can only be “acidic in water”
What is the ph scale?
Its a scale running from 0-14 0-6 is acidic 7 is neutral 8-14 is alkali
What is an alkali?
has a pH greater than 7 litmus à blue universal à blue phenolphthalein à pink dissolves in water to produce –OH(aq) ions proton (H+) acceptor a base reacts with an acid to neutralise it forming a salt and water
What is an indicator?
An indicator for acids and bases are used to find if is acidic or neutral or alkali judging by colour Examples are: Universal indicator Litmus paper Phenolphthalein
What is an ionic equation
An ionic equation is one which does not include spectator ions, it is thus somewhat simplified and generic. spectator ions – ions which do not change in charge of physical state during the course of a reaction.
Describe the PH Scale