Before we begin, let's first establish an understanding of basic terminology It may be harder than you think lo clearly define what is a chemical versus a chemical reaction closely related terms, review the words listed here Sort each of the words into the three categories contains chemicals, chemical reaction, or neither . oranges
heat
sunlight
photosynthesis
bleaching protein
neutralization
combustion
vitamin K
rainbow
marble

oranges:  chemical

heat: neither

sunlight: neither

photosynthesis: chemical reaction

bleaching protein: contains chemical

neutralization: chemical reaction

combustion: chemical reaction

vitamin K: contains chemical

rainbow: neither

marble: contains chemical

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oranges: contains chemical

heat: neither

sunlight: neither

photosynthesis: chemical reaction

bleaching protein: contains chemical

neutralization: chemical reaction

combustion: chemical reaction

vitamin K: contains chemical

rainbow: neither

marble: contains chemical

Explanation:

A chemical is a substance that is used in or made by chemical reactions. It is a matter with compositions related to the science of chemistry. In the question,

- orange contains chemical like vitamins, protein molecules etc.

- Bleaching protein contains chemicals that bring about the bleaching process.

- Vitamin k contains chemical elements

- marble contains Calcium, oxygen etc elements

A chemical reaction is that which involves the change in chemical properties of involved substances.

- Photosynthesis is the chemical reaction between carbon dioxide and water in the presence of sunlight to give glucose.

- Neutralization is the chemical reaction where an acid neutralizes a base to form a salt and water molecule.

- Combustion is the chemical reaction involving the burning of a chemical substance.

Some substances like sunlight, heat and rainbow are neither a chemical or chemical reaction.