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6 Cards in this Set
- Front
- Back
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Law of Conservation of Mass
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Matter cannot be created or destroyed, it can only change form
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Physical Changes
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Do not result in the production of a new substance
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Sublimation
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The process of a substance changing from a solid phase directly into a vapor phase
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Examples of Physical Changes
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Melting wax, cutting wood, breaking glass, boiling water, bending metal, freezing carbon dioxide, dissolving salt, cutting hair
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Chemical Changes
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Result in the production of one or more new substances
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Examples of Chemical Changes
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Photosynthesis, zinc reacting with an acid, methane gas burning, synthesis of magnesium oxide
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