Question

identify a physical change and a chemical change that occurs when using wax for different purposes. select the two true statements. a chemical change occurs when a wax candle burns, producing a flame. a physical change occurs when a wax candle burns, producing a flame. a chemical change occurs when a candles flame causes the wax to melt. a physical change occurs when a candles flame causes the wax to melt.

Explanation:

Physical changes involve a change in form but not in chemical composition. Melting wax is a physical change as the wax changes from solid to liquid without forming new substances. Chemical changes result in the formation of new substances. When a wax - candle burns and produces a flame, a chemical reaction occurs between the wax and oxygen to form carbon - dioxide, water vapor, etc.

Answer:

A. A chemical change occurs when a wax candle burns, producing a flame.
D. A physical change occurs when a candle's flame causes the wax to melt.