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September 2, 2015

Homework Help: Grade 12 Chem - please check answer

Posted by Laura on Sunday, June 1, 2008 at 3:24pm.

The four possible unknown chemicals are: Cu(s), Ca(OH)2(s), KNO3(aq) and C6H12O6(aq).

a) colorless solutions, high electrical conductivity, no change on litmus paper
b)white crystals, no electrical conductivity, red to blue on litmus
c) shiny brown wire, high electrical conductivity, no change on litmus
d) colorless solution, low electrical conductivity, no change on litmus

I said:
a)C6H12O6(aq)
b)Ca(OH)2(s)
c)Cu(s)
d)KNO3(aq)

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