It is a combustion reaction because when methane burns with oxyzen it produces carbon dioxide,water and heat and light.
silver tarnishes is a chemical change
4Ag + 2H2S + O2 -> 2Ag2S + 2H20 i’m pretty sure that’s correct
The term that describes when a solvent is holding as much solute in solution as it is able for a given temperature is called supersaturated solution. A little disturbance to this solution some of the solute will crystallize or precipitate out since this solution is not stable.
