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A solvent that all the components of the reaction will dissolve into, and that won't become part of the reaction itself, would be a good solvent for a chemical reaction. This means that different reactions will require different solvents.
No
The solute would be iodine, and the solvent would be tincture
You would recrystallize a solid from a solvent pair because if only one solvent was used, then it might be hard to dissolve the solute. In a solvent pair, one solvent would probably be better at dissolving the solute.
Water is the solute the sugar and lemons and what have you would be the solvent.
Some good rated epoxy paints would be a two part solvent-based such as Behr. Quikrete and Rust-Oleum. These epoxy paints can be obtain at Home Depot, Lowes or a similar store.
They will separate as you use them. Can look messy or 'cool and streaky'.
A solvent that all the components of the reaction will dissolve into, and that won't become part of the reaction itself, would be a good solvent for a chemical reaction. This means that different reactions will require different solvents.
Different paints create different effects/moods.
Sand and marbles would not be a solution. A solution has a solute (a solid) and a solvent (a liquid). You must also not be able to just separate the two. Sand and marbles would not be a solution because you can simply pick out the marbles, and there is no solvent!
If a substance is dissolved in a solvent, distillation allows recovery of both the solvent and the solute.
Solution: Dextrose 5% in water for injection.Solute: DextroseSolvent: Water for injection.
Paints can consist of a lot of different substances. There are water/latex-based paints that pretty much has to be drunk by the cup to be "dangerous", then there are solvent based paints that contains benzene and other nasties, where prolonged exposure will lead to brain damage. Some paints contains chemicals designed to prevent mold, some yacht paints contains toxins to stop barnacles and seaweed from growing and these can certainly be dangerous as well. Some epoxy based paints will affect your breathing during/after extended exposure-that's certainly dangerous too. Paint is a dangerous good and is classified under Flammable Liquids. If you read most of the content written in most paint products, they would have a warning regarding the hazards of the product.
No
The Rf value would not be the same for every solvent as there are factors that allow each solvent to be unique. The attractive force, particle size and solubility of each solvent will create different results each time.
The solute would be iodine, and the solvent would be tincture
No, there are some paints, like many water-based paints, that will not block air and moisture and can not be used on metal . Most solvent based paints, like an alkyd or lacquer, over a proper primer, direct to metal water-based acrylics and multi-part epoxies and urethanes can be used over metal successfully.