Lab 3 Physical and Chemical Properties

716 Words3 Pages
DATE: 10/2/2012 LAB 3 – PHYSICAL & CHEMICAL PROPERTIES *Adapted from LabPaq Purpose: To determine whether certain changes in matter are chemical or physical, and to describe the changes in detail using observational skills Observations and Experimental Data: Substance: Mg Color: Silver Odor: Slighty Effect of Heat: Particles moved, bubbles flowing up to top Solub. or Reaction w/cold H2O: No reaction Solub. or Reaction w/hot H2O: Bubbles produced from the gas Litmus test: Red turned blue and blue had no change Dilute HCl: Sizzle, steams, heat output Dilute NaOH: Gas was formed. Substance: Cu Color: Redish Brown Odor: None Effect of Heat: Became darker, almost purple like. Solub. or Reaction w/cold H2O: No reaction Solub. or Reaction w/hot H2O: No reaction Litmus test: No reaction on red or blue. Dilute HCl: Solution turned yellowish, but no actual reaction on copper Dilute NaOH: No reaction Substance: Zn Color: Silver Odor: None Effect of Heat: None Solub. or Reaction w/cold H2O:None Solub. or Reaction w/hot H2O: None Litmus test: Blue turned white. Red had no reaction. Dilute HCl: Bubbles up and fumes form, the zinc became darker in color. Dilute NaOH: None Substance: MgO Color: White Odor: Yes Effect of Heat: None Solub. or Reaction w/cold H2O: Dissolved water turned white. Solub. or Reaction w/hot H2O: MgO separated from water. Litmus test: Red turned blue and blue had no reaction Dilute HCl: Fizzes and substance turns yellowish while bubbling the back to white. Dilute NaOH: Dissolves and substance became a bit thick Substance: CuCO3 Color: Green Odor: Yes Effect of Heat: Turned into black powder Solub. or Reaction w/cold H2O: No reaction. Solub. or Reaction w/hot H2O: No reaction Litmus test: No change on blue or red. Dilute HCl: Bubbles up, does not dissolve, solution turns green

More about Lab 3 Physical and Chemical Properties

Open Document