Combustion involves with heat. The answer is burning wood.
Matter needs to be in the state called a plasma. The sun is made of plasma, for example. A plasma is when the electrons have been stripped from the atoms.
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The unknown medium would be glass
To solve this we use the equation,
M1V1 = M2V2
where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.
.675 M x V1 = .25 M x 1.3 L
V1 = 0.48 L or 480 mL