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e-devam eNotes educator| Certified Educator

No, it is not.

Substances like sugar, salt etc. disappear when put into water, but substances like stone, sand, wood etc. never disappear in water. It is said that sugar and salt are soluble in water, whereas stones and wood are not. Some substances like paint, varnish etc. are insoluble in water, but soluble in solvents like acetone, turpentine oil and the likes. Again, salts are insoluble in these solvents but dissolves easily in water. Kerosene and petrol easily mix up at any proportion, but kerosene and water do not. As a general rule, polar solvents dissolve polar (or ionic) substances and non-polar solvents dissolve non-polar substances. This is the famous "like dissolves like" principle.

Then there are substances which dissolve in neither of these two class of solvents. Wood is a complex organo-polymer composed of cellulose, lignin, hemicellulose and other polysachcharides. It is not soluble in any available solvent, be it polar or non-polar.

tomthesmart | Student

na sorry mate its not. use an ice cube that is soluble :)

atyourservice | Student

A wooden cube is not soluble. Soluble means that the substance is able to break down in water. Salt and sugar for example are soluble because they breakdown in water and after a while it is hard to see them. A wooden cube on the other hand will still be a wooden cube even if left in water over a period of time, making it insoluble.

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