Question

Define chemical reaction?​

Answer 1

Answer:

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Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. 

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Answer 2

Answer:

POINT 1: Chemical reaction is a process when two or more then two substances (called reactants) are converted to one or more different substances (called products).

POINT 2: Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

POINT 3: Reactions may proceed in the forward or reverse direction until they go to completion or reach equilibrium. Reactions that proceed in the forward direction to approach equilibrium are often described as spontaneous, requiring no input of free energy to go forward. Non-spontaneous reactions require input of free energy to go forward (examples include charging a battery by applying an external electrical power source, or photosynthesis driven by absorption of electromagnetic radiation in the form of sunlight).

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