Select two events that represent chemical changes that occur as a candle burns.

Question

A.
Heat and light are produced.

B.
The heat melts the candle wax.

C.
Black smoke rises from the flame.

D.
Wax drips down the side of the candle.

E.
The candle wax turns solid as it cools.

Answer 1

The two events that represent chemical changes occurring as a candle burns are:

A. Heat and light are produced.

C. Black smoke rises from the flame.

These events indicate that new substances are being formed as the candle wax combusts, which is a chemical change. The other options primarily describe physical changes.