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- A mixture is defined as the result of combining two or more substances, such that each maintains its chemical identity. In other words, a chemical reaction does not occur between components of a mixture. Examples include combinations of salt and sand, sugar and water, and blood.
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Pour a small amount of two different liquids together into one cup and mix them together with a clean spoon. What happens to the liquids? Did the two liquids become one new liquid, or do they remain separate liquids and form layers?
It all has to do with a concept called miscibility and another important factor called density. Miscibility describes how well or how easily two liquids mix together. Some liquids, like orange juice and water, mix together easily and become a special kind of mixture called a homogeneous mixture.
Two liquids that appear to mix completely together are said to be miscible. Water and ethanol are one example of a pair of miscible liquids, because you can take any amount of ethanol and mix it with any amount of water and you will always end up with a clear, colorless liquid just like the ones you started with.
Compounds require chemical means to separate them into elements and/or simpler compounds. Sodium chloride, also known as table salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. It is commonly used as a condiment and food preservative.
Remember two solutions of different concentrations are mixed together, the total amount of substance of the solution is the sum of the amounts of the individual solutions. when you get the sum of the amounts, you add their volumes and use those two to determine the new concentration of the solution.
May 1, 2024 · Mixing two solids, without melting them together, typically results in a heterogeneous mixture. Examples include sand and sugar, salt and gravel, a basket of produce, and a toy box filled with toys. Mixtures in two or more phases are heterogeneous mixtures.
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Sep 1, 2023 · As they investigate the chemistry of mixtures, they learn about hydrophobic, hydrophilic, and immiscible properties; solvents and solutes; solubility and saturation; phases; the Tyndall effect; and how mixtures are related to real-world challenges and solutions.
