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Chemistry
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Precipitation
bluedicius
Posts: 20, Reputation: 1
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1
Nov 18, 2004, 07:43 PM
precipitation
What balanced equation do you get when you add colorless sodium hydroxide to blue copper (II) nitrate to produce a light blue precipitate?
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urmod4u
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Nov 18, 2004, 08:49 PM
2NaOH + Cu(NO3)2 -> 2NaNO3 + Cu(OH)2
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urmod4u
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Nov 18, 2004, 09:31 PM
Although the previous equation is correct, you might prefer it in this form:
2Na+ +2OH- + Cu++ + 2(NO3)- -> 2Na+ + 2(NO3)- + Cu(OH)2
or
Cu++ + 2OH- -> Cu(OH)2
The Na+ and NO3- do not participate in the reaction.
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