Chemicals are often known by more than one name. For example, isopropanol is also known as isopropyl alcohol. Chemists have devised various numbering systems for chemicals to help you exactly identify the chemical you are using.
Watch this tutorial on Names and Numbers.
Use these sources to identify registry numbers for your lab assignment.
In the U.S., companies that manufacture chemicals are required to provide safety information for each chemical and to make that information available to anyone who works with chemicals and to fire departments and emergency planning agencies. Safety Data Sheets (SDS) are provided that include information on handling, storage, toxicity, fire prevention, clean up and much more.
Watch this tutorial on finding chemical safety information.
Physical properties are the observed attributes of an element or compound, some examples include melting point, boiling point, density, etc. Chemical properties are attributes of chemicals that can only be observed when chemical identity is changed through some sort of reaction, for example heat of combustion.