Hydrogen Sulfide Properties and Reactions

The video tutorial explains how to write the chemical formula for hydrogen sulfide (H2S). It begins by identifying the elements involved, hydrogen and sulfur, and their respective charges. The tutorial then demonstrates how to balance these charges to achieve a neutral compound. It also discusses the properties of hydrogen sulfide, noting its gaseous state and unpleasant odor. Additionally, the video covers the behavior of hydrogen sulfide in water, where it acts as a weak acid and is referred to as hydrosulfuric acid.

What is the chemical symbol for sulfur?

• S

• H

• O

• N

How many hydrogen atoms are needed to balance the charge of sulfur in hydrogen sulfide?

• 3

• 2

• 4

• 1

What is the chemical formula for hydrogen sulfide?

• HS

• H2S

• H2SO4

• HSO4

What is a notable property of hydrogen sulfide gas?

• It is a solid at room temperature

• It has a very bad smell

• It has a pleasant smell

• It is odorless

What happens to hydrogen sulfide when it is dissolved in water?

• It becomes a base

• It remains unchanged

• It becomes a strong acid

• It dissociates slightly

What is the name given to hydrogen sulfide when it is dissolved in water?

• Hydrochloric acid

• Hydrosulfuric acid

• Sulfurous acid

• Sulfuric acid

Why is hydrogen sulfide considered a weak acid?

• It fully dissociates in water

• It does not dissociate at all

• It only partially dissociates in water

• It is not an acid