Homogenous Vs. Heterogenous Mixtures

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What is a homogeneous mixture?

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A homogeneous mixture is a mixture in which the composition is uniform throughout. Examples include saltwater and air.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture in which the composition is not uniform and different components can be seen. Examples include salad and sand.

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What is a compound?

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A compound is a substance formed when two or more elements are chemically bonded together. Example: Water (H2O) is a compound made of hydrogen and oxygen.

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What is an element?

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An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen (O) and gold (Au).

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How many atoms are in the compound NH3?

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The compound NH3 contains 1 atom of Nitrogen and 3 atoms of Hydrogen.

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What is the difference between a mixture and a compound?

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

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What is an example of a homogeneous mixture?

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An example of a homogeneous mixture is vinegar, which has a consistent composition throughout.

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What is an example of a heterogeneous mixture?

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An example of a heterogeneous mixture is a bowl of cereal with milk, where the components can be seen and separated.

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What does the chemical formula O2 represent?

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The chemical formula O2 represents an element, specifically oxygen, which consists of two oxygen atoms.

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What does the chemical formula H2O represent?

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The chemical formula H2O represents a compound, specifically water, which consists of two hydrogen atoms and one oxygen atom.