Acids, Alkalis, Bases, Titrations, Salt Preparations Flashcards
Litmus colours
Red - Blue
Methyl Orange
Red - Yellow
Phenophthalein
Colourless - pink
Universal indicator
Red - Blue
What are bases?
Bases are substances that neutralise acids by combining with the hydrogen ions in them
Common sodium, potassium and ammonium compounds are?
Soluble
All nitrates are?
Soluble
Common chlorides are?
Soluble (except silver and lead)
Common sulphates are?
Soluble (expect barium calcium and lead)
Common carbonates are?
Insoluble (except sodium potassium and ammonium)
Common hydroxides are?
Insoluble (except sodium potassium and calcium)
Metal + acid
= salt + hydrogen
Metal oxide + acid
= salt + water
Metal hydroxide + acid
Salt + water
Metal carbonate + acid
= salt + water + carbon dioxide