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What change of state is it when a candle wax becomes a liquid?
The change of state is melting. When a candle wax is heated, it transitions from a solid state to a liquid state.
What is difference between wax vapour and gaseous wax?
It is because the wax changes from solid to liquid and the wax can't appear in a gaseous state
What is the change of state in a lit candle?
The change of state in a lit candle is from solid (wax) to liquid (molten wax) to gas (vaporized wax) as the heat from the flame melts the wax and turns it into vapor that burns, releasing heat and light.
Why is melting wax a physical change?
Melting wax is a physical change because it only involves a change in the state of matter from solid to liquid, without any alteration in the chemical composition of the wax molecules. The process is reversible, meaning the wax can solidify again by cooling down.
Which metal reacts most vigorously with water at 25C?
Potassium is the metal that reacts most vigorously with water at 25C.
