Zinc Nitrate Properties and Structure

The video tutorial explains how to write the Lewis structure for zinc nitrate (Zn(NO3)2). It begins by introducing zinc nitrate as an ionic compound composed of a metal (zinc) and a polyatomic ion (nitrate). The video details the electron transfer process where zinc loses two valence electrons, each going to a nitrate ion, resulting in a zinc ion with a 2+ charge. The tutorial then demonstrates how to replace nitrate ions with their Lewis structures and discusses the use of brackets. Finally, it explains the concept of formula units, noting that zinc nitrate forms a crystal made of repeating units.

What type of compound is zinc nitrate?

• Molecular

• Covalent

• Ionic

• Metallic

What role does zinc play in the formation of zinc nitrate?

• It gains electrons from nitrate ions.

• It does not interact with nitrate ions.

• It shares electrons with nitrate ions.

• It transfers electrons to nitrate ions.

What is the charge on a zinc ion in zinc nitrate?

• 3+

• 2+

• 1+

• Neutral

How many valence electrons does zinc lose when forming zinc nitrate?

• One

• Two

• Three

• None

What is the charge of the nitrate ion in zinc nitrate?

• 3-

• Neutral

• 2-

• 1-

What is the significance of brackets in the Lewis structure of zinc nitrate?

• They indicate the presence of a metal.

• They show the ionic nature of the compound.

• They highlight the polyatomic ion.

• They are used for aesthetic purposes.

What does the term 'formula unit' refer to in the context of zinc nitrate?

• A unit of measurement for zinc.

• A type of chemical bond.

• The smallest repeating unit in the crystal structure.

• A single molecule of zinc nitrate.

Why is zinc nitrate considered a crystal?

• It is made of repeating formula units.

• It is a single large molecule.

• It has a metallic structure.

• It is a liquid at room temperature.