How do sudstances interact with other substances?

Answer 1

well, there are many different scenario's with a soluble substances and water; diffusion, osmosis, evaporation, dissolving etc.

Dissolving & diffusion- when you add a soluble substance to water such as sugar, the substance moves from a high concentration to a low concentration so the after it is broken down and worn by the water, the sugar particles will 'bond' with the water. However, there may come a point where it no longer dissolves but just sinks to the bottom and this is because the bonds are too strong to become broken so no more can dissolve.

Evaporation & Condensation- Once the soluble substance has dissolved, it does not 'disappear' or vanish, it is just broken into tiny particles throughout the water. Since it has bonded with the water, fishing for the sugar or filtering for it is impossible so you go by means of evaporation. Since water has a fairly low boiling point compared to most melts, you can boil it easily as it will be given enough energy to form a gas, water vapour, but the sugar will not evaporate with it because it is a more dense compound, so crystals are left behind.

Osmosis- is a special type of diffusion where water, containing a solute passes through a partially permeable membrane across a gradient from a large concentration to a low concentration. For example, if in a cell, there is a higher concentration of solute than outside, where there is a lower concentration then water will leave the cell to balance things and try to create an equilibrium. On extremes, the cells can shrivel up and become inactive. If there is a lower concentration of solute in the cell than outside, where there is a higher concentration then water will enter the cell. On extremes, the cells can burst because of too much water..

Answer 2

Question needs to be more specific. In particular, which substances are you considering to "interact" with other particular substances? For examples, if you are speaking strictly substances in a chemistry laboratory or biochemical processes and want to see interactions within the human body, you will need to specify.

Answer 3

In their pure forms water is a chemical compound. Salt and sugar refer to classes of chemical compounds that share a taste. Scientifically, salt is a compound formed when an acid reacts with an alkali (base) but the word is also used to describe a flavouring that comprise sodium chloride, magnesium chloride and other compounds. Sugar is a term used for a class of sweet tasting carbohydrates. There are various types of sugar derived from different sources: these are monosaccharides, disaccharides and oligosaccharides. [There are also artificial sweeteners which are not sugars.]

Answer 4

Salt (sodium chloride, NaCl)) is an inorganic ionic salt.
Water (H2O) is an oxide.
Sugar (sucrose, C12H22O11) is an organic compound.