Topic 7: The Characteristic Properties of Acids and Bases Flashcards
An acid
is a proton donor
An aqueous solution of an acid
contains H+ ions
A strong acid
is an acid that completely dissociates in aqueous solution
A weak acid
is an acid that partly dissociates in aqueous solution
A base
is a proton acceptor
Bases
are oxides or hydroxides of metals
Alkalis
are soluble bases
An aqueous solution of an alkali
contains OHions
A neutralisation reaction
between an acid and an alkali produces water
H+(aq) + OH– (aq) → H2O (l )
Amphoteric oxides
are oxides that react with acids and with bases to produce a salt and water
A hydrated substance
is a substance that is chemically combined with water
An anhydrous substance
is a substance containing no water
Water of crystallisation
is the water molecules present in hydrated crystals