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The diagrams below show the electron arrangement in two compounds.
In a water molecule, each hydrogen atom is bonded to the oxygen atom by sharing a pair of electrons.
Why does an oxygen atom share two pairs of electrons rather than just one pair?
Describe how a potassium atom becomes a potassium ion.
Why is there a bond between the ions in potassium chloride?
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Solid potassium chloride is a poor conductor of electricity. When dissolved in water it is a good conductor. Explain
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