Which of the following most suitably captures the meaning and essece of 39 chemical reaction 39 1 It...........

Science Affairs Chemistry

Which of the following most suitably captures the meaning and essece of 'chemical reaction'

1. It is the process in which positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei.

2. It is a process that leads to the chemical transformation of one set of chemical substances to another.

Select the correct answer using the code given below:

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants. Reactions often consist of a sequence of individual sub-steps, the so-called elementary reactions, and the information on the precise course of action is part of the reaction mechanism. Chemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration.