Yes, those are physical properties, also. Chemical properties are those that involve a reaction. For example, a chemical property (I've forgotten the question and the element but let's pick oxygen) for oxygen might be
2H2 + O2 ==> 2H2O or
4Fe + 3O2 ==> 2Fe2O3
okay and i don't understand what they are asking for for chemical characteristics.
i was thinking like density, melting point, and boiling point but arent those physical too?
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