What is the best method to classify a chemical substance?

Variables

Different classifications of chemical substances

Different types of bonding

risk assessment

Melting or boiling point - the temperature of the substance melting or boiling

Conductivity - a measure of the substances ability to conduct heat or electricity

Covalent Bonding - When two non-metallic atoms combine with the same or different non-metallic atoms.

Metallic Bonding - The electrostatic attraction between conduction electrons and positively charged metal ions.

ionic

Properties

  • High melting and boiling point
    • conducts electricity
  • Mettalic Lattice Structure

IV

Properties - high melting and boiling point, solid, lattice structure, poor conductivity

Properties - low melting and boiling point, poor electrical conductivity, non malleable, brittle

Glass Breaking

beakers

test tubes

substance getting in contact with eyes

causes irritation

redness in eyes

watery eyes

Heat from Bunsen burner

Could catch on the gloves and cause a part of the glove to burn.

The peg being used to hold the test tube might turn black

DV

water

results from experiment

CV

temperature

UV

impact of results

Structure

Compound

covalent network

covalent bonding

lattice

ionic bonding

metallic bonding

molecular structures

electrical

heat

Malleability - the substance being able to shape into another shape without breaking