solution
saltwater
A 24-k Rose gold jewelry
A Bronze medal
Air
Vinegar
Components
Salt and water
91.7% Gold and 8.40% copper
80% copper and 20% tin
approximately 78% Nitrogen and 21% Oxygen
acetic acid and water
Solute
1
2
3
4
5
Solvent
1
2
3
4
5
Physical state of solute (solid, liquid,gas)
1
2
3
4
5
Physical state of solvent (solid, liquid,gas)
1
2
3
4
5
Answers & Comments
Answer:
Solute-Solvent Combinations
The focus of "Chapter 15: Water" was water's role in the formation of aqueous solutions. We examined the primary characteristics of a solution and how water is able to dissolve solid solutes; we differentiated between a solution, a suspension, and a colloid. There are many examples of solutions that do not involve water at all, or that involve solutes that are not solids. The table below summarizes the possible combinations of solute-solvent states, along with examples of each.
Gas-Gas Solutions
Our air is a homogenous mixture of many different gases and therefore qualifies as a solution. Approximately 78% of the atmosphere is nitrogen, making it the solvent for this solution. The next major constituent is oxygen (about 21% ), followed by the inert gas argon (0.9%) , carbon dioxide (0.03%) , and trace amounts of neon, methane, helium, and other gases.
Solid-Solid Solutions
Solid-solid solutions such as brass, bronze, and sterling silver are called alloys. Bronze (composed mainly of copper with added tin) was widely used in making weapons in times past, dating back to at least 2400 B.C. This metal alloy was hard and tough, but was eventually replaced by iron.
Liquid-Liquid Solutions
Perhaps the most familiar liquid-solid solution is dental amalgam, used to fill teeth when there is a cavity. Approximately 50% of the amalgam material is liquid mercury to which a powdered alloy of silver, tin, and copper is added. Mercury is used because it binds well with the solid metal alloy. However, the use of mercury-based dental amalgam has gone under question in recent years, because of concerns regarding the toxicity of mercury.
Summary
Solutions may be composed of a variety of solid, liquid, or gaseous materials.
Explanation:
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