Patients with < 10% TBSA burns can be resuscitated orally (unless the patient has an electrical injury or associated trauma). In the case of patients with burns 10-40% TBSA, secure a large-bore IV line; add a second line if transportation will take longer than 45 minutes. South African Burn Society burn stabilisation protocol
Water is an ingredient that can dissolve soap. Water is a solvent and the the soap is the solute. Solutes are things that dissolve in solvents. I'm not sure what you're asking about an ingredient, but water makes all soap dissolve.
As a result of the Saponification process, the fatty acids are hydrolyzed in presence of an alkali so as to form salts of alkali and alcohol. Upon cooling of the dissolved mixture, solid soap was observed the end of the process. Energy consumed by each process is tabulated below.