Chemical Compounds and Formulas

The video tutorial explains how to write and name the formula for diboron tetrabromide (B2Br4). It begins by identifying the prefixes 'di' and 'tetra' to determine the number of atoms in the compound. The tutorial then guides viewers through writing the chemical symbols for boron and bromine, resulting in the formula B2Br4. Finally, it covers how to name the compound using the same prefixes, emphasizing the presence of a metalloid and a non-metal.

What do the prefixes 'dye' and 'tetra' indicate in a molecular compound?

• The charge of the compound

• The type of elements present

• The state of matter of the compound

• The number of atoms of each element

Which symbol represents boron in the chemical formula?

• Br

• B

• Bo

• Bn

How many bromine atoms are present in diboron tetrabromide?

• Three

• Five

• Two

• Four

What is the correct chemical formula for diboron tetrabromide?

• B2Br3

• BBr4

• B2Br4

• B3Br2

When given the formula B2Br4, what type of elements are present?

• A metalloid and a non-metal

• A metal and a non-metal

• Two non-metals

• Two metals