Naming and Understanding Molecular Compounds

This video tutorial explains how to write the chemical formula for diphosphorous trioxide. It begins by introducing the prefixes 'di' and 'tri', which indicate the number of atoms in a molecular compound. The tutorial then guides viewers through writing the formula P2O3, explaining the significance of each prefix. Finally, it covers how to name the compound from its formula, emphasizing the use of prefixes for non-metal elements. The video concludes with a brief closing statement.

What do the prefixes 'di' and 'tri' indicate in a molecular compound?

• The state of matter of the compound

• The type of elements involved

• The number of atoms of each element

• The charge of the compound

What is the element symbol for phosphorus?

• Ph

• Po

• P

• O

How many oxygen atoms are present in diphosphorous trioxide?

• One

• Two

• Three

• Four

Given the formula P2O3, what is the name of the compound?

• Diphosphorous trioxide

• Diphosphorous oxide

• Phosphorous oxide

• Phosphorous trioxide

What must you recognize about the elements in P2O3 to correctly name the compound?

• They are metalloids

• They are noble gases

• They are metals

• They are non-metals