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Professor Boswell calculated the amount of mass in a piece of wood.  He then burned the wood in a container until it was only ashes and gases.  The masses of the ashes and gases combined ___

Question

Professor Boswell calculated the amount of mass in a piece of wood.  He then burned the wood in a container until it was only ashes and gases.  The masses of the ashes and gases combined ___

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Solution

The masses of the ashes and gases combined would be equal to the original mass of the wood. This is due to the Law of Conservation of Mass, which states that matter cannot be created or destroyed, only transformed. So, even though the wood has changed form, the total mass remains the same.

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