Chromium Compounds and Charges

The video tutorial explains how to write the formula for chromium-6 chloride. It begins by identifying the element symbols and their charges, then discusses the need for balancing these charges to achieve a neutral compound. The tutorial also covers how to name the compound based on its formula, emphasizing the importance of understanding ion charges and their role in chemical formulas.

What does the Roman numeral six in chromium-6 chloride indicate?

• The number of electrons in chromium

• The atomic number of chromium

• The charge of the chromium ion

• The number of chloride ions

What is the charge of a chloride ion?

• 2-

• 1-

• 2+

• 1+

How many chloride ions are needed to balance the charge of one chromium ion in chromium-6 chloride?

• Two

• Four

• Six

• Eight

What is the net charge of chromium-6 chloride?

• 0

• 1+

• 6-

• 6+

If given the formula CrCl6, what would be the charge of chromium?

• 6+

• 4+

• 5+

• 3+

What is the correct name for the compound with the formula CrCl6?

• Chromium chloride

• Chromium-6 chloride

• Chromium hexachloride

• Chromium dichloride