6. A student records the following evidence in a lab book. [2 marks]

Unknown Substance
Pure State
Solubility in Water
Solution Conductivity

I
solid
high
low

II
solid
low
low

III
solid
high
none

IV
solid
high
high

Which of the substances in the table above is most likely an ionic compound? Explain your answer.

Question

6. A student records the following evidence in a lab book. [2 marks]
 




Unknown Substance
Pure State
Solubility in Water
Solution Conductivity


I
solid 
high
low 


II
solid 
low 
low 


III
solid 
high
none


IV
solid 
high
high




 
Which of the substances in the table above is most likely an ionic compound? Explain your answer.

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Unknown Substance	Pure State	Solubility in Water	Solution Conductivity
I	solid	high	low
II	solid	low	low
III	solid	high	none
IV	solid	high	high