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What are five common mixtures?

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Some examples of mixtures include metal alloys containing two or more metals, salt dissolved in water, air containing various gases, sand mixed with tiny rocks and pebbles, and trail mix with different types of nuts and raisins. When two or more substances mix and retain their chemical properties through the process, they form a mixture. The individual components in a mixture can be separated.

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Mixtures are present in several forms. In order for a substance to be considered a mixture, the chemical properties of their individual components cannot change. The components can be mixed in any desired ratio and can be separated through physical methods, such as evaporation, chromatography, filtration or precipitation. For example, iron filings can be mixed with sand to form a mixture which can be easily separated using a magnet. The magnet attracts only the iron particles. Tap water is a mixture of water and dissolved compounds and metal ions. Dirt is a mixture of various materials such as sand, moisture and rocks. Ocean water is a mixture of water, sodium chloride and some other substances. The sodium chloride can be isolated from ocean water by evaporating the water, leaving behind sea salt. Metal alloys, such as steel and bronze, are considered to be mixtures of various metals. Carbonated water is a mixture of water and a gas, which can also be easily separated by agitating the mixture and releasing the gas.

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