Chromium Compounds and Properties

The video tutorial explains how to write the formula for chromium-6 oxide, also known as chromium trioxide. It begins by introducing the compound and its components, chromium and oxygen. The video then details the charges of these elements and how to balance them to form a neutral compound. By adjusting the subscripts, the formula CrO3 is derived. The tutorial concludes by reiterating the name chromium trioxide due to the presence of three oxygen atoms.

What is another name for Chromium-6 Oxide?

• Chromium Dioxide

• Chromium Trioxide

• Chromium Pentoxide

• Chromium Tetroxide

What is the symbol for chromium in the periodic table?

• Co

• Cm

• Cr

• Ch

What is the ionic charge of oxygen in group 16 of the periodic table?

• 1+

• 2-

• 1-

• 2+

Why is Chromium-6 Oxide considered a neutral compound?

• Because the charges of chromium and oxygen balance each other

• Because it has equal numbers of protons and electrons

• Because it is a noble gas

• Because it has no charge

How many oxygen atoms are present in the formula for Chromium-6 Oxide?

• One

• Two

• Three

• Four

What is the chemical formula for Chromium-6 Oxide?

• CrO

• CrO2

• CrO3

• Cr2O3