Physical and Chemical Properties

Desiree Trujillo March 6th, 2013 Lab # 3 Chemistry 101

Physical & Chemical Properties

Purpose
To examine the physical and chemical properties of multiple natural chemical substances, and to determine which changes are chemical and which are physical.
Data
Solubility or Reaction | SubstanceName | Color | Odor | Effectof Heat | ColdH2O | HotH2O | LitmusTest | DiluteHCl | DiluteNaOH | Mg | Silver | Odorless | Slight change of color and expansion | No Reaction | Substance became buoyant, gas produced | No Reaction | Gas and heat produced, substance dissolved | No Reaction | Cu | Copper | Odorless | Added Sheen | No Reaction | No Reaction | No Reaction | No Reaction | No Reaction | Zn | Metallic Silver | Odorless | No Reaction | No Reaction | No Reaction | No Reaction | Substance dulled, gas produced | No Reaction | MgO | White | Odorless | No Reaction | Substance opaque color, gas produced | Substance completely dissolved | Red paper turned blue | Gas and heat produced, substance turned yellow | No Reaction | CuCO3 | Green | Odorless | Substance Melted | Substance partially dissolved | Substance completely dissolved | No Reaction | Substance turned bright green in color | Substance turned blue in color | Cu(NO3)2 | Bright Blue | Odorless | No Reaction | Substance completely dissolved | Substance completely dissolved | Blue paper turned red | Substance turned light green in color | No Reaction | NaCl | White | Odorless | No Reaction | No Reaction | Substance completely dissolved | No Reaction | No Reaction | No Reaction |
Hands-On Lab, Inc.
Observations
I observed, while smelling the substances, that most of them just smelled like the plastic bag that they were in. This would affect the odor observations.
Calculations
No calculations to record.
Conclusion
After performing multiple experiments on many different chemical substances, I have a better