Lab 3 Physical and Chemical Properties

DATE: 10/2/2012


LAB 3 natural & CHEMICAL PROPERTIES

*Adapted from LabPaq


Purpose: To determine whether certain pitchs in matter are chemical or physical, and to describe the changes in detail using observational skills

Observations and Experimental Data:

meat: Mg
people of color: Silver
Odor: cold-shouldery
Effect of modify: Particles moved, bubbles flowing up to top
Solub. or Reaction w/ ice-cold H2O: No reaction
Solub. or Reaction w/ racy H2O: Bubbles produced from the gas
litmus test: ablaze(p) dour blue and blue had no change
Dilute HCl: Sizzle, steams, heat output
Dilute NaOH: Gas was formed.

Substance: Cu
excuse: Redish Brown
Odor: None
Effect of warming: Became darker, almost purple like.
Solub. or Reaction w/cold H2O: No reaction
Solub. or Reaction w/ calorifacient H2O: No reaction
litmus test test: No reaction on red or blue.
Dilute HCl: Solution turned yellowish, but no material 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/ sweltering 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: dissolve 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, antecedent turns green
Dilute NaOH: Turns navy blue

Substance: Cu(NO3)2
Color: Blue
Odor: Slight odor.
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