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4 Cards in this Set
- Front
- Back
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Law of Conservation of Matter |
There is no observable change in the quantity of matter during a chemical reaction or during a physical change. |
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Law of Conservation of Energy |
Energy cannot be created or destroyed in a chemical reaction or in a physical change. It can only be converted from one form to another. |
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Law of Conservation of Matter and Energy |
The combined amount of matter and energy available in the universe is fixed. |
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Law of Definite Proportions (Law of Constant Composition) |
Different samples of any pure compound contain the same elements in the same proportions by mass. |
