Practise IB Chemistry SL 1.1.1 with questions that classify elements, compounds and mixtures, then select physical separation methods for each mixture.
Iron(II) sulfide can be produced by heating powdered iron and sulfur together.
Describe the difference between an element and a compound.
elements contain only one type of atom / atoms with same atomic number/same number of protons
OR cannot be chemically broken down «into simpler substances»
compounds contain different types of atoms «chemically» bonded together
OR
consist of different elements «chemically» bonded together «in fixed ratios»
Marking guidance:
Accept combined/joined for bonded in M2.