Question

What is a chemical change?

A. melting ice B. boiling water
C. a candle burning D. frost forming inside a freezer.
E. none above

Answer 1

Answer:

$\textsf {C. a candle burning}$

Explanation:

$\textsf {A chemical change is an irreversible process.}$

$\textsf {Water can be interchanged between its states of matter,}\\ \textsf{and that is a physical change.}$

$\textsf {But a burning candle cannot be changed back.}\\\textsf {Hence, it is a chemical change.}$

Answer 2

Answer:

C. a candle burning

Question:

What is a chemical change?