Phosphorus Trichloride Concepts

The video tutorial explains how to write the chemical formula for phosphorus trichloride (PCl3). It begins by identifying phosphorus and chlorine as non-metals on the periodic table, indicating a molecular compound. The tutorial then details the process of writing the formula by using element symbols and assigning subscripts based on prefixes. The final formula, PCl3, is derived by understanding that 'tri' indicates three chlorine atoms. The video concludes with a brief mention of a table for memorizing prefixes.

What type of compound is phosphorus trichloride?

• Ionic compound

• Covalent network solid

• Molecular compound

• Metallic compound

Which elements are involved in forming phosphorus trichloride?

• Phosphorus and Chlorine

• Phosphorus and Oxygen

• Chlorine and Sodium

• Phosphorus and Hydrogen

What is the symbol for phosphorus in the periodic table?

• Ph

• Po

• Cl

• P

How many chlorine atoms are present in phosphorus trichloride?

• Four

• One

• Two

• Three

What does the prefix 'Tri' indicate in the name phosphorus trichloride?

• One atom

• Two atoms

• Three atoms

• Four atoms

What is the correct chemical formula for phosphorus trichloride?

• PCl3

• PCl

• PCl2

• P3Cl

Which resource can help in memorizing chemical prefixes?

• A molecular chart

• A prefix table

• A chemical equation

• A periodic table