CHM 105 Practice Worksheet: Writing Formulas and Naming Compounds

These flashcards cover key concepts related to writing formulas and naming compounds, including definitions of terms and examples of specific compounds.

Ionic Compound

A compound formed from the electrostatic attraction between positive (cation) and negative (anion) ions.

Cation

A positively charged ion.

Anion

A negatively charged ion.

Binary Nonmetal Compound

A molecular compound composed of two nonmetals.

Writing Formulas of Ionic Compounds

Write the formula by placing the cation first followed by the anion.

Naming Ionic Compounds

Name the cation followed by the anion; for anions, end with 'ide'.

Mono-

Prefix meaning one (1).

Di-

Prefix meaning two (2).

Tri-

Prefix meaning three (3).

Tetra-

Prefix meaning four (4).

Writing Formulas of Binary Nonmetal Compounds

The formula is created by combining the elements according to their prefixes.

Naming Binary Nonmetal Compounds

Use prefixes to indicate the number of each atom, and end the second element with 'ide'.

Dinitrogen Tetroxide

The compound with the formula N2O4.

Phosphorus Trichloride

The compound with the formula PCl3.

Sulfur Hexafluoride

The compound with the formula SF6.

Carbon Dioxide

A binary nonmetal compound with the formula CO2.

Ammonium Carbonate

An ionic compound with the formula (NH4)2CO3.