A #4
What Goes Around Comes Around
What you did
Chemical added
What you saw (your
(write the chemical
formula)
observations from the
lab)
Got a sample of
copper
Cu (s)
orangish-brown fine
powder
Added nitric acid
HNO3 (aq)
PART 2: DATA TABLE
Write the chemical
formula and name of
the copper compound at
each stage
Cu (s), solid copper
powder
Added sodium
hydroxide
Added heat (removes
none
H2O)
Added sulfuric acid
Added zinc
Where is the copper
Cu (s), solid copper
powder
The copper is in the
beaker in solid form.
A #4
What Goes Around Comes Around
What you did
Chemical added
What you saw (your
(write the chemical
formula)
observations from the
lab)
Got a sample of
copper
Cu (s)
orangish-brown fine
powder
Added nitric acid
HNO3 (aq)
PART 2: DATA TABLE
Write the chemical
formula and name of
the copper compound at
each stage
Cu (s), solid copper
powder
Added sodium
hydroxide
Added heat (removes
none
H2O)
Added sulfuric acid
Added zinc
Where is the copper
Cu (s), solid copper
powder
The copper is in the
beaker in solid form.
A #4
What Goes Around Comes Around
PART 1:
Steps of the Copper Cycle
Step 1 -- Colorless nitric acid is added to solid orange-brown copper powder, resulting in a blue-green solution, a brown
gas, and liquid water.
____________ is added to ___________, resulting in _____________ and ______________ and _____________.
Step 2 -- Clear, colorless sodium hydroxide solution is added to the blue-green solution, resulting in clumps of dark blue
solid (the observation vial was blue-green) and clear, colorless sodium nitrate solution.
_________________ is added to _________________, resulting in _________________ and _________________.
(blue-green solution)
(dark blue solid)
Step 3 -- The dark blue clumps (the observation vial was blue-green) are heated, resulting in a black solid and liquid water.
_________________ is heated, resulting in _________________ and _________________.
(dark blue solid)
(black solid)
Step 4 -- Clear colorless sulfuric acid is added to the black solid, resulting in a clear blue solution and liquid water.
_________________ is added to _________________, resulting in _________________ and ______________.
(black solid)
Step 5 -- Solid, liver-gray zinc is added to the clear blue solution, resulting in a brownish powder and clear, colorless zinc
sulfate solution.
________________ is added to _________________, resulting in _________________ and _________________.
(clear blue solution)
(brownish powder)
A #4
What Goes Around Comes Around
PART 1:
Steps of the Copper Cycle
Step 1 -- Colorless nitric acid is added to solid orange-brown copper powder, resulting in a blue-green solution, a brown
gas, and liquid water.
____________ is added to ___________, resulting in _____________ and ______________ and _____________.
Step 2 -- Clear, colorless sodium hydroxide solution is added to the blue-green solution, resulting in clumps of dark blue
solid (the observation vial was blue-green) and clear, colorless sodium nitrate solution.
_________________ is added to _________________, resulting in _________________ and _________________.
(blue-green solution)
(dark blue solid)
Step 3 -- The dark blue clumps (the observation vial was blue-green) are heated, resulting in a black solid and liquid water.
_________________ is heated, resulting in _________________ and _________________.
(dark blue solid)
(black solid)
Step 4 -- Clear colorless sulfuric acid is added to the black solid, resulting in a clear blue solution and liquid water.
_________________ is added to _________________, resulting in _________________ and ______________.
(black solid)
Step 5 -- Solid, liver-gray zinc is added to the clear blue solution, resulting in a brownish powder and clear, colorless zinc
sulfate solution.
________________ is added to _________________, resulting in _________________ and _________________.
(clear blue solution)
(brownish powder)