Respuesta :
2K + Br₂ = 2KBr
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A coefficients is "a number placed in front of a chemical symbol or formula. It shows the number of atoms or molecules of the substance that are involved in the chemical reaction".
What is chemical symbol?
A chemical symbol is "a one or two letter designation of an element".
What is atom?
Atom is the smallest unit of matter.
What are molecules?
Molecules are made up of two or more atoms.
What is chemical reaction?
Chemical reaction is a process in which two or more reactants are converted into products.
Hence, 2K+Br₂ → 2KBr is the balanced equation with correct coefficients.
To learn more about coefficients here
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