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.