What colour is a strong acid in universal indicator?
What colour is a neutral substance in universal indicator?
pH 5 is a...
pH 13 is a...
pH 0 is a...
What type of ions does an acid contain?
What type of ions does an alkali contain?
Sulphuric acid + Copper oxide -->
Nitric acid +Calcium oxide -->
In chromatography the mobile phase is the...
In chromatography the stationary phase is the...
Ionic bonding occurs between...
covalent bonding occurs between...
Draw a dot and cross diagram to show the covalent bonding between a hydrogen atom and a chlorine atom.
Draw a dot and cross diagram to show ionic bonding betwen sodium and chlorine.