Copper Pipe Issue

Our Situation
Some of the copper pipes under the city of San Francisco have been corroding and a light green/blue paste is always found at sites of corrosion. Also, there are always strange metallic bits found clogging the pipes as well. After some investigation, you found that the areas where there were the most corrosion was always under facilities like film schools, CVS, Walgreens, etc – places where people develop film, and hospitals. Silver Nitrate is a chemical that is often used to develop film and is also used to prevent infection in the eyes or newborn babies.

This reminds me of the Aluminum and Blue lab because there was copper in the liquid before which made it blue. These experiments are like reverse of each other. The copper in the After of this lab reminds me of the silver in the After of the copper lab.

Balanced Chemical Equation for the copper and silver nitrate reaction
NO3+Cu → CuO3+N

I will confirm my chemical equation because we will find what is in the blueish green paste on the pipes and what is causing this to happen. We can figure this out by testing that past to see what is in it. Test the silver solid to see if it is silver. Test water with batteries to see what is in it. We should collect what chemicals it is made of, how it is being formed, and what is happening with the Silver Nitrate.

My answer helps me confirm the chemical equation because it will show the copper is found in the paste and silver nitrate is being split up like the Aluminum and Blue lab. There was a chemical reaction that had split all the chemicals up and changed their location.

Particle Diagram

Zinc and Iodine

Materials
Zinc
Iodine
Vinegar
Beakers

Physical Description
Before:
Zinc
Was a silverish grey color
Tiny specks of Zinc
Iodine
Was a charcoal color
Broken up into smaller pieces
After:
Iodine
The iodine bonded with Vinegar
Zinc
The zinc did not react with the Vinegar and Iodine.
It stayed at the bottom of the beaker.

Quantitative Measurments
Before:
Zinc
2.08g
Iodine
2g
After:
Iodine
3g

Balanced Equation
I2+Zn → I2Zn

My balanced equation is I2+Zn → I2Zn for the Zinc and Iodine lab. In this lab we mixed iodine with vinegar to make a liquid because iodine bonded with the vinegar and it then turned all into a liquid. We then mixed the solution with zinc which layed at the bottom of the beaker. When we tested to see what was mixed in the liquid with the Iodine, we found some Zinc that had bonded with Iodine. This is how we got the second part of the equation.

Magnesium Oxide

Materials: 
Crucible
Propane Tank
Magnesium

Physical Description
Before:
Silver/ Gray
Folded
Shiny
After:
White
Looks Like Bird Poop
Chalky

Quantitative Measurments
Before:
Magnesium was .43g
After:
Magnesium was .63g

Balanced Equation
 4Mg+O2→ 2Mg2O

My balanced equation is  4Mg+O2→ 2Mg2O. We started with magnesium in our crucible and oxygen in the air and fire. When we heated the Magnesium the Oxygen mixed with the Magnesium. The chemical reaction attached Oxygen with Magnesium after we used fire to heat the Magnesium. Since Oxygen is in fire, that is probably where the Oxygen mixed with Magnesium and how the Magnesium lights up.

Aluminum and Blue

Materials:
Chlorine
Aluminum Foil
Copper
Beaker

Physical Description
Before:
Foil: Grey, Shiney, Solid
Liquid: Blue, Small White Specks, Smells Like Copper
After:
Foil: Rusty-Looking, Crumpled, Redish Brown Coloring
Liquid: Clear, Specks In Liquid


Quantitative Measurments
Before:
Liquid is 20mL
After:
Liquid is 20mL

Balanced Equation
Al+ClCu → AlCl+Cu

My balanced chemical equation is Al+ CuCl→ AlCl+Cu. The liquid was blue at first but when we added the aluminum it turned clear . The blue liquid had copper and chlorine but after it had aluminum and chlorine. There was a chemical change. At first the liquid had copper and chlorine while the foil had aluminum. But after we added the foil the liquid had aluminum and chlorine, and the foil had copper.

Water Investigation

Materials:
Red Wire
Black Wire
Water
Beaker
2 Tubes
Battery

Physical Description
Before:
There was a red and black wire that we had put into tubes with water, each wire in one tube. And then connected the battery
After:
Tubes had wires in it, with the battery connected. There were bubbles moving from the wire to the top of the tube.

Quantitative Measurments
Before:
The battery's mass was 46.21g
After:
The battery's mass was 46.21
The gas in red wired tube was .5cm
The gas in black wired tube was 2.5cm

Balanced Equation
 H2O→2H+O

My balanced equation is H20→2H+O. I got this by seeing how the amount of water decreased while Hydrogen increased. The wires that were put into the tubes were connected to a battery so it gave off electric charge. This made gas form in the tube and the water level decreased while the amount of gas increased. So the chemical equation shows the before, water, which turned into oxygen and two hydrogen. We tested to see if it was gas in the top of the tubes by using fire. We heard a pop when letting the gas hit the fire and that is how we knew it was Hydrogen. The Oxygen didn’t make a noise, the flame got brighter, that is how we knew it was oxygen.