Balance this equation: ___Ag(s)+ ___H2S(g)+___ O2(g) arrow ___Ag2S(s)+___ H2O(I)

The balanced equation :

4Ag(s)+ 2H₂S(g)+ O₂(g) ⇒2Ag₂S(s)+ 2H₂O(I)

Given

Reaction

Ag(s)+ ___H2S(g)+___ O2(g) --> ___Ag2S(s)+___ H2O(I)

Required

Balanced equation

Solution

Give a coefficient

aAg(s)+ bH₂S(g)+ cO₂(g) ⇒Ag₂S(s)+ dH₂O(I)

Make an equation

Ag, left=a, right=2 ⇒ a=2

S, left=b, right=1 ⇒b=1

H, left=2b, right=2d ⇒2b=2d ⇒2.1=2d ⇒d=1

O, left=2c ⇒right=d ⇒2c=d ⇒2c=1 ⇒c=1/2

The equation becomes :

2Ag(s)+ H₂S(g)+ 1/2O₂(g) ⇒Ag₂S(s)+ H₂O(I) x2

4Ag(s)+ 2H₂S(g)+ O₂(g) ⇒2Ag₂S(s)+ 2H₂O(I)

well off of my head we know that the perfume bottle is most likely opened, or broken. i can also tell it is moving at low and high concentration because it is covering the other side of the room. what we can obtain from this information is it explains why the odor can be detected at the other side of the room.

it would be a gas formation