Boron Tribromide and Chemical Prefixes

This video tutorial explains how to write and name the formula for boron tribromide. It begins by identifying boron as a metalloid and bromine as a non-metal, forming a covalent compound. The tutorial then guides viewers through writing the formula BBr3, using the prefix 'tri' to indicate three bromine atoms. Finally, it covers naming the compound from the formula, emphasizing the use of the prefix to denote the number of bromine atoms.

What type of element is boron classified as?

• Metal

• Non-metal

• Metalloid

• Noble gas

What does the 'tri' prefix in boron tribromide indicate?

• Three molecules

• Three covalent bonds

• Three bromine atoms

• Three boron atoms

Which of the following is the correct chemical formula for boron tribromide?

• B3Br

• BBr3

• BBr2

• BBr

How many bromine atoms are present in the formula BBr3?

• One

• Two

• Three

• Four

If given the formula BBr3, what is the correct name for the compound?

• Boron tetrabromide

• Boron tribromide

• Boron bromide

• Boron dibromide

What is the role of the prefix 'tri' in naming covalent compounds?

• Indicates the number of atoms of the second element

• Indicates the number of atoms of the first element

• Indicates the type of bond

• Indicates the number of molecules

Which elements form the compound boron tribromide?

• Boron and fluorine

• Boron and iodine

• Boron and bromine

• Boron and chlorine