neutralisation

Cards (9)

do bee stings have acid or alkaline
bee stings are acidic
how do we make an acid or alkaline neutral
we add the opposite substance, eg. to make an acid neutral, we add an alkaline vice-versa
why does neutralisation work
the acids and alkalines cancel each other out
what experiment / practical could prove that neutralisation works
using a liquid universal indicator (red) and an acid (e.g. HCL); adding universal indicator to an acid and then add sodium hydroxide (NaOH), swirl and stop when it turns green (neutral)
do wasp stings have acid or alkaline
wasp stings are alkaline
why can bicarbonate of soda be used to treat a bee sting
bicarbonate of soda has a pH of 9, which is a weak alkaline
a bee sting has a pH of about 3.5, which is a weak acid therefore the acid will be neutralised by the weak alkaline
why is vinegar good to relieve a wasp sting
vinegar has a pH of 3, which is a weak acid
wasp sting is about pH of 10, which is a weak alkaline, the alkaline will then be neutralised by the weak alkaline
what is the formula of neutralisation
acid + alkali -> salt + water
what is a salt
the generic name for a neutral substance made when an acid and alkali react together