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Suppose a candle is burned in a closed system where matter cannot enter or leave. Given this situation,

what is equal to the mass of the original candle?

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Answer:

Mass of the melted wax

Step-by-step explanation:

The mass of the original candle that has been burnt in the closed system is equal to the mass of the melted wax.

  • A closed system is a system where matter cannot be exchange with the surrounding.
  • As the candle undergoes a phase change during the burning, it melts to liquid wax.
  • Since there is no loss of mass, the amount of matter in the system is conserved.
  • Therefore, the mass of the molten wax will be the same as the mass of the candle originally melted.
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