Contains chemical : vitamin  b12, oranges, grapes, protein
chemical reaction is : neutralization, combustion, bleaching, photosynthesis
Neither : sunlight, rainbow, heat.
- chemical is a substance
- Chemical reaction is a process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
- atoms reactant is a starting materials in a chemical reaction
- atoms product is new substances that are formed in a chemical reaction
- chemical equation is representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
- atoms combustion reaction is a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
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