Pure water can dissolve pretty much anything, at least to some degree (this degree may be vanishingly small for some materials, in which case we say they're insoluble in water).
Lipids generally dissolve pretty well in water by forming micelles (like tiny bubbles, with the polar end out and the non-polar end pointed in).
because they have the ability to repel water (hydrophobic)
A drop of water in a jar of pure alcohol would be water dissolved in alcohol.
Firstly, pure salt is white and it becomes colourless when dissolved in water. Secondly, solid salt is a non-conductor of electricity, whereas the solution is an electrolyte and conducts well.
Pure water + suger dissolved in it
yes, as is water with salt dissolved in it.
Potassium dichromate is a pure substance in solid form. When dissolved in water, it forms a solution, which is a homogeneous mixture of potassium dichromate and water molecules.
Just plain water is a pure substance (a compound) but something dissolved completely in water is a homogeneous mixture.
"Pure water" is a term usually used to refer to water that is just water- with no other materials dissolved in it. Almost all water has some materials (Salts, minerals, etc) dissolved in it, so obtaining truly "pure" water (Just H20) must often be accomplished by artificial means.
Pure
The percentage of pure water in ocean water is 96.5%
Salt water is not considered pure water because it contains dissolved salts and minerals. It is classified as a mixture, where the salt is the solute and the water is the solvent. In comparison, pure water contains only water molecules with no additional substances dissolved in it.
The amount of dissolved salt in water affects its heat capacity - the ability to hold heat. Generally, higher salt content in water lowers its specific heat capacity, meaning it can hold less heat compared to pure water. This is due to the presence of salt ions interfering with the water molecules' ability to store heat energy.