Classification of Matter-1

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What is a compound?

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A compound is a pure substance formed when two or more elements chemically combine in fixed proportions.

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What is an element?

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An element is a pure substance that cannot be separated into simpler substances by chemical or physical means.

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What is a mixture?

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A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

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What is a homogeneous mixture?

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A homogeneous mixture is a mixture that has a uniform composition throughout, such as salt water.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture that does not have a uniform composition, such as salad or Italian dressing.

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What is a chemical formula?

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A chemical formula is a way of expressing the composition of a compound using symbols for its constituent elements, e.g., C11H22O11.

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What is the difference between a compound and a mixture?

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A compound is a substance formed from two or more elements chemically bonded, while a mixture is a physical combination of substances that retain their individual properties.

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What is an example of a compound?

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Water (H2O) is an example of a compound.

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What is an example of an element?

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Gold (Au) is an example of an element.

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What is an example of a homogeneous mixture?

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Salt water is an example of a homogeneous mixture.