Ontario Grade 9 Science Class Practice Exam

Question: 1 / 400

What determines a chemical property?

The physical state of a substance

The color and odor of a substance

Changes in the substance's composition that produce one or more new substances

Chemical properties are determined by changes in a substance's composition, which can produce one or more new substances. This is different from physical properties, such as the physical state, color, and odor of a substance, which do not involve any changes in composition. While melting and boiling points can provide information about a substance's physical properties, they do not necessarily determine its chemical properties.

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The melting and boiling points of a substance

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