Different Formats for Different Numeric Values (Format Function) A user-defined format expression for numbers can have from one to four sections separated by semicolons. If the format argument contains one of the named numeric formats, only one section is allowed.
Hardness is a mineral's ability to resist being scratched. Minerals that are not easily scratched are hard. You test the hardness of a mineral by scratching its surface with a mineral of a known hardness. Mineralogists use Mohs Scale, shown in Table 3.2, as a reference for mineral hardness.
â¢ The properties of a substance are classified into its physical properties and chemical properties. â¢ While physical properties can be observed and measured easily without altering the nature of the substance chemical properties are those that decide how the substance behaves in different circumstances and how it reacts with other substances.