Describe the similarities and differences between voltaic and electrolytic cells. be sure to address the following items in your description: spontaneous reduction or oxidation reactions and which electrode(s) they occur at charges on electrodes .

Both cell are opposite to each other in function and make

Explanation:

a)A voltaic cell works opposite to that of electrolytic cell. It produces chemical energy from electrical energy while the later one produces electrical energy from chemical energy.

b)The chemical reactions in voltaic cell are spontaneous while chemical reactions in electrolytic cells are non –spontaneous.  

c)The anode and cathode carry opposite charges in the two cells. In case of voltaic cell, anode carries negative charge while cathode carries positive charge.However, in case of electrolytic cell both cathode and anode bear opposite charges wrt voltaic cell

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

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