A substance with a definite ratio of components is called a ______.

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Multiple Choice

A substance with a definite ratio of components is called a ______.

Explanation:
A substance with a definite ratio of components is formed when elements combine chemically to create a compound, so the proportions are fixed by the chemical formula. An element is a pure substance made of one type of atom, not a combination of different elements. A mixture contains two or more substances not bonded together, so their proportions can vary. A solution is a homogeneous mixture where the solute can vary in amount relative to the solvent. Because a compound has a specific, fixed ratio of elements in every sample, the correct term is compound. For example, water has a definite H2O composition.

A substance with a definite ratio of components is formed when elements combine chemically to create a compound, so the proportions are fixed by the chemical formula. An element is a pure substance made of one type of atom, not a combination of different elements. A mixture contains two or more substances not bonded together, so their proportions can vary. A solution is a homogeneous mixture where the solute can vary in amount relative to the solvent. Because a compound has a specific, fixed ratio of elements in every sample, the correct term is compound. For example, water has a definite H2O composition.

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