Question

(a) Define a chemical reaction. (b) What happens during a chemical reaction? (c) What do you understand by a chemical bond ?​

Answer 1

Answer:

a. a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

b. Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules). The number of atoms before and after the chemical change is the same but the number of molecules will change.

c. Chemical bonding describes a variety of interactions that hold atoms together in chemical compounds.

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