Ammonium Sulfide Properties and Bonds

The video explores whether ammonium sulfide (NH4 2S) is ionic or covalent. Despite being composed of non-metals, NH4 2S is an ionic compound due to the presence of the polyatomic ion NH4, which carries a positive charge. This charge is balanced by the sulfur ion, which has a negative charge, resulting in an ionic bond. The video explains the concept of polyatomic ions and charge balancing, concluding that NH4 2S is indeed ionic.

What is the main question being addressed in the video?

• Whether ammonium sulfide is a metal or non-metal

• Whether ammonium sulfide is ionic or covalent

• The uses of ammonium sulfide

• The color of ammonium sulfide

Which elements are present in ammonium sulfide?

• Oxygen, Hydrogen, and Sulfur

• Carbon, Nitrogen, and Oxygen

• Phosphorus, Hydrogen, and Sulfur

• Nitrogen, Hydrogen, and Sulfur

Why might one initially expect ammonium sulfide to be covalent?

• Because it contains metals

• Because it is a liquid at room temperature

• Because it is a gas at room temperature

• Because it contains non-metals

What is the charge of the polyatomic ion NH4+?

• 1-

• 2-

• 2+

• 1+

How many ammonium ions are needed to balance the charge of sulfur in ammonium sulfide?

• One

• Two

• Three

• Four

What is the ionic charge of sulfur in ammonium sulfide?

• 1+

• 2-

• 2+

• 1-

What type of bond is formed in ammonium sulfide?

• Ionic bond

• Hydrogen bond

• Metallic bond

• Covalent bond