Answer:
Zn + CuSO4 —> ZnSO4 + Cu
Explanation:
Zn is higher than Cu in electrochemical series and so will displaces Cu in solution according to the equation:
Zn + CuSO4 —> ZnSO4 + Cu
nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
It states the fact, which we now know, that electrons are responsible for the chemical bonding. According to this theory, valency is the number of electrons present in the outermost energy shell of the atom. This energy shell is called valency shell.
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