Read the chemical equation shown. 2Ag + H2S → Ag2S + H2

Which statement is true about this chemical equation?

Ag (silver) is oxidized and H (hydrogen) is reduced.
Ag (silver) is reduced and H (hydrogen) is oxidized.
S (sulfur) is reduced and H (hydrogen) is oxidized.
S (sulfur) is oxidized and Ag (silver) is reduced.

kuchisake

kuchisake-onna (口裂け女, "slit mouth woman ") is a malevolent figure appearing in japanese ghost stories, possibly dating back to the edo period. she takes the form of a masked woman who approaches people and asks them if they believe she is pretty.

explanation:

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.