MgO + CaS ---> MgS + CaO
well the chemical reaction is cooking not physical
Photosynthesis.
Substances that undergo chemical change are called reactants.
Energy that is stored into something and released by a chemical reaction is known as chemical energy. Some examples of these are batteries, gasoline, coal, and food.
Nope - they're an example of a chemical reaction.
The reaction between hydrogen and oxygen to form water is represented by the following equation. 2 H2 + O2 2 H2O
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
Examples of chemical changes: combustion, corrosion, fermentation, photochemical reaction, polymerization.
Examples of chemical properties: flammability, reaction with oxygen, valence, toxicity, stability, electronegativity etc.
Bubbles, and heat change are examples of chemical reactions. When a chemical reaction happens, a compound is formed. It cant be separated. Another example could be change of colour. -making caramel sauce -getting a suntan
Examples: cooking, washing, burning a fuel.
Electrocution, fire and chemical reaction