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B-9
OBSERVATIONS & INFORMATION SHEET - EXPERIMENT B
*
Chemical Reactions of Copper
Part II:
copper
reagent
reagent(s)
added
product(s)
formed
reagent(s)
added
product(s)
formed
reagent(s)
added
product(s)
formed
chemical formula:
CuSO
4
(aq)
3-5 drops of
NH3(aq)
(low [NH3])
10 drops of
NH3(aq)
(high [NH3])
ethanol
description & observations:
(eg. color, solubility characteristics,
evolution of a gas, etc ...)
The blue precipitate that formed initially but later dissolved was
Write the balanced net ionic equation for this precipitation reaction:
Part III A:
copper
reagent
reagent(s)
added
product(s)
formed
reagent(s)
added
product(s)
formed
chemical formula:
CuSO
4
(aq)
3-5 drops of
NaOH(aq)
(low [OH
-
])
10 drops of
NaOH(aq)
(high [OH
-
])
description & observations:
(eg. color, solubility characteristics,
evolution of a gas, etc ...)
