Is Unexpected Color Change Physical Or Chemical? For example, burned wood becomes ash, carbon dioxide, and water. When exposed to water, iron becomes a mixture of several hydrated iron oxides and hydroxides. Yeast carries out fermentation to produce alcohol from sugar. An unexpected color change or release of odor also often indicates a chemical change.
What Changes A Chemical Reaction? In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change. What describes a chemical change? a usually irreversible chemical
What Are Four Things That Indicate That A Chemical Change Probably Happened? Color Change. Production of an odor. Change of Temperature. Evolution of a gas (formation of bubbles) Precipitate (formation of a solid) What are 4 examples of a chemical reaction? Examples of chemical reactions in everyday life include photosynthesis, rust, baking, digestion, combustion, chemical