What Are 5 Common Examples of Chemical Changes?
Discover 5 common chemical change examples including rusting, burning wood, baking, digestion, and silver tarnishing explained simply.
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Five examples of chemical changes include: 1. Rusting of Iron - the reaction of iron with oxygen creating iron oxide. 2. Burning of Wood - wood reacting with oxygen generating heat, light, smoke, and ash. 3. Baking a Cake - ingredients undergo chemical reactions to form a new product. 4. Digesting Food - breaking down complex molecules into simpler forms. 5. Tarnishing of Silver - silver reacting with sulfur-containing substances to form silver sulfide, a black compound.
FAQs & Answers
- What is a chemical change? A chemical change is a process where substances react to form new products with different properties, often irreversible, such as rusting or burning.
- How can you tell if a chemical change has occurred? Signs of chemical change include color change, gas production, formation of a precipitate, temperature change, and the creation of new substances.
- Is burning wood a chemical change or physical change? Burning wood is a chemical change because it produces new substances like ash, smoke, and releases energy.