Explain the particles in Solutions of sodium sulfate alone and lead nitrate alone explain what happens to these particles of the two solutions are added together steered then allowed to sit for a couple minutes

white precipitates of PbSO4 will appear

Explanation:

Now let us first consider the reaction equation;

Na2SO4(aq) + Pb(NO3)2(aq) >2NaNO3(aq) + PbSO4(s)

So, if i mix solutions of sodium sulfate and lead II nitrate, stir it and allow it to stand for a couple of minutes, i will begin to see the appearance of white precipitates of PbSO4.

This follows from the solubility rules. Sulphates are soluble in water except those of group II ions, Pb^2+ and silver I ion.

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.