ionic/cov. lab class instructions - Thames Valley District School Board

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Lab #1: Ionic or Molecular?
How can we determine if an
substance is ionic compound, or
molecular compound?
Create a flowchart comparing ionic
and covalent compounds
Based on what we now know, what can we predict
about their chemical and physical properties??
Question; What physical properties are
associated with ionic compounds and
molecular compounds and why?
Materials
wax
Epsom salts
Rubbing alcohol
Sugar
Vegetable oil
Washing soda
Conductivity tester
Test tubes
Water
Acetate strips
Magnifying glass
Bunser burner (maybe)
observation table
use min 5 substances and conduct 5 “tests”
substance Form
(crystal,
amorphous)
wax
Epsom
salts
Rubbing
alcohol
Solubility state
(high, low)
Ionic or
covalent
Conclusion
T-chart comparing compounds and their;
components, state, relative melting points,
odour (strong or weak), conductivity, form,
intermolecular bond strength, intramolecular
bond strength and why they exhibit each
Covalent molecules
property. Ionic compounds
Eg.
Composed of metal and nonmetal when electron(s)
transfer from cation to anion
Usually solid state due to…
Weak intermolecular bond
due to…
Composed of non-metals
when…

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