Question

what type of change is occurring in this candle? explain?

Explanation:

When a candle burns, a chemical change occurs. The wax (a hydrocarbon) reacts with oxygen in the air to produce carbon dioxide, water vapor, and heat. This is a chemical reaction as new substances are formed. Additionally, there is a physical change as the solid wax melts into liquid wax (melting is a physical change - change in state without altering the chemical composition). But the main and significant change is the chemical change (combustion).

Answer:

Both physical and chemical changes. Physical change: Wax melting (change of state from solid to liquid). Chemical change: Wax (hydrocarbon) reacting with oxygen to form carbon dioxide, water vapor, and heat (new substances formed). The dominant and more significant change is the chemical change (combustion).