Final answer:
When a log is burned, the products that are formed are carbon dioxide and water.
Step-by-step explanation:
When a log is burned, the products that are formed are carbon dioxide and water. This is because combustion reactions typically involve the reaction of a carbon-containing material with oxygen to form carbon dioxide and water as products. In the case of burning a log, the carbon in the wood reacts with oxygen to form carbon dioxide, and the hydrogen in the wood reacts with oxygen to form water.