In the reaction Zn + CuSO₄ → Cu + ZnSO₄

The given question is incomplete. The complete question is:

In the reaction , identify the oxidizing and reducing agent.

 reducing agent. : Zn

oxidizing agent :

Explanation:

Oxidation reaction : When there is an increase in oxidation state number.

Reduction reaction : when there is a decrease in oxidation state number.

Zinc metal has undergone oxidation, as its oxidation state is changing from 0 to 2+. Zinc metal is getting converted into zinc ions.

ions has undergone reduction, as its oxidation state is changing from +2  to 0. Copper ions are getting converted into copper metal.

The chemical agent which itself get oxidized and reduce others is called reducing agent.   is a reducing agent.

The chemical agent which itself get reduced and oxidize others is called oxidizing agent. is an oxidizing agent.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.