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Select all the ways in which two substances can be different. Two substances can be composed of different chemical elements. Two substances can be composed of the same chemical elements, but the substances can have crystal structures with atoms that are arranged differently. Two substances can be composed of molecules that contain the same chemical elements but have different numbers of atoms of each element. Submit

Ask by Colon Hampton. in the United States
Mar 11,2025

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Two substances can be different if they are composed of different chemical elements, have different crystal structures, or have molecules with the same elements but different numbers of atoms.

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To determine the ways in which two substances can be different, we can analyze the provided statements: 1. **Different Chemical Elements**: Two substances can be composed of different chemical elements. This means that the substances are fundamentally different at the elemental level. 2. **Same Chemical Elements, Different Crystal Structures**: Two substances can be composed of the same chemical elements, but they can have different crystal structures. This indicates that even if the substances are made of the same elements, their arrangement at the atomic level can lead to different properties. 3. **Same Chemical Elements, Different Molecular Composition**: Two substances can be composed of molecules that contain the same chemical elements but have different numbers of atoms of each element. This means that the molecular structure and composition can vary, leading to different substances. Based on this analysis, all three statements describe valid ways in which two substances can be different. Therefore, the answer includes all the provided options.

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Mind Expander

Did you know that the fascinating world of substances is all about their unique characteristics? For instance, while two substances can consist of the same elements, their physical properties can vary widely, influencing boiling points, densities, and reactivities. This is known as isomerism, where compounds share a formula but differ in structure. This variation can lead to dramatic differences in behavior and application, like gasoline and its isomers, which have distinct uses in engines! On a practical note, understanding how substances differ can help in problem-solving, especially in cooking or chemistry experiments. For example, many bakers may mistakenly believe that using all-purpose flour and cake flour interchangeably is fine, but the differing protein content and structure yield dramatically different results. Recognizing these subtle distinctions can save you from culinary disasters and make your creations shine!

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