Give reason: (a) Rusting of iron is a chemical change but magnetizing and demagnetizing of iron is
a physical change.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+