Zinc Chloride Formation and Properties

The video tutorial explains how to write the formula for zinc chloride by using the periodic table to identify zinc (Zn) and chlorine (Cl). It discusses the ionic charges of zinc (+2) and chlorine (-1) and how these charges need to balance to form a neutral compound. The crisscross method is introduced to determine the correct subscripts for the formula ZnCl2. Finally, the video verifies the formula by ensuring the net charge is zero, confirming the accuracy of ZnCl2 as the formula for zinc chloride.

Which elements are involved in the formation of zinc chloride?

• Zinc and Sulfur

• Zinc and Oxygen

• Zinc and Chlorine

• Zinc and Nitrogen

What type of compound is formed between zinc and chlorine?

• Molecular compound

• Ionic compound

• Covalent compound

• Metallic compound

What is the ionic charge of zinc in zinc chloride?

• +2

• +1

• -2

• -1

What is the ionic charge of chlorine in zinc chloride?

• -2

• +2

• -1

• +1

What method is used to balance the charges in zinc chloride?

• Substitution method

• Crisscross method

• Cross-multiplication method

• Addition method

In the crisscross method, what happens to the charges?

• They are added together

• They are subtracted

• They are swapped and used as subscripts

• They are ignored

How many chlorine atoms are needed to balance the charge of one zinc atom in zinc chloride?

• Four

• Two

• One

• Three

What is the net charge of the zinc chloride molecule?

• +2

• +1

• 0

• -1