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.
Place a different liquid soap or small piece of solid soap into each cups numbered 2 through 5. Stir to dissolve the soaps. Add 1 tablespoon of fruit juice to cup 6. Add 1 tablespoon of a different fruit juice to cup 7, another to cup 8, and another to cup 9.