Which of these is a physical property? a) ability to burn a piece pf paper b) pure sodium reacts violently with water c) the boiling point of water is 100° c d) helium does not tend to react with anything

[07.06] which of the following chemical reactions is an oxidation-reduction reaction? (2 points) wo3 + 3h2 yields w + 3h2o kno3 + licl yields lino3 + kcl caso4 + 2nacl yields na2so4 + cacl2 mg(no3)2 + 2hbr yields mgbr2 + 2hno3