Chemistry

Finish for homework

NOTES

Prefixes tell you how many atoms you have.

·      This is different than ionic compounds, because in ionic compounds you get the empirical formula.

·      The molecular formula is the actual number of atoms in the compound.

·      When the first one is singular then you don’t put the prefix in front of it. Element that is named first and there are not multiples, then leave the prefix off

·      Written second have a higher electronegativity and have a negative charge or characteristic

EXAMPLES:

Molecular

N₂O₄

Empirical

NO₂

Regular Covalent:

            Dinitrogen tetroxide = N₂O₄

            Sulfur dichloride = SCl₂

            disilicon hexabromide = Si₂Br₆

dichlorine monoxide = Cl₂O