level: The Laws of Chemical Combination
Questions and Answers List
level questions: The Laws of Chemical Combination
Question | Answer |
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The Law of Conservation of Matter | Matter cannot be created or destroyed in a chemical reaction. |
The Law of Constant Composition | A compound always contains the same elements combined together in the same proportion by mass. |
Is it possible for the chemical composition of a compound to change? | No, the chemical composition of a compound cannot change. |
The Law of Multiple Proportions | If two elements "A" and "B" combine together to form more than one compound, then the different masses of "A" which combine with a fixed mass of "B" are in a simple ratio. |