Question

if you burning a log in the fireplace what kind of change is the log going through physical or chemical?

Answer 1

When you burn a log in the fireplace, the log undergoes a chemical change. During combustion, the wood reacts with oxygen in the air to produce ash, carbon dioxide, water vapor, and other compounds. This process alters the chemical structure of the wood, meaning that the original substances are transformed into different substances. Unlike physical changes, which do not alter the chemical composition of a material (like melting or freezing), chemical changes result in new chemical products.