Chemistry

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what happens when NaCl(s) is dissolved in water?
(1)Cl-ions are attracted to the oxygen atoms of the water
(2)Cl-ions are attracted to the hydrogen atoms of the water.
(3)Na+ions are attracted to the hydrogen atoms of the water.
(4)no attractions are involved; the crystal just falls apart.

please help & explain the answer !

  • Chemistry -

    i think its 1 but im not sure. am i right ?

  • Chemistry -

    Crystals dissolve in water because the heat of solution of the ions is enough to overcome the lattice forces holding the crystal together. The water molecules are dipoles with the H end positive and the O end negative. The negative end of water molecules is attracted to the Na^+ and the positive end of the water molecules is attracted to the Cl^- ions. Look in the answers where opposite charges attract (because like charges repel so those won't happen).

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