2) AgNO3 + Cu Cu(NO3)2 + Ag 3) CF4 + Br2 CBr4 + F2

4) GaF3 + Cs CsF + Ga

5) N2 + H2 NH3

6) NaF + Br2 NaBr + F2

7) CH4 + O2 CO2 + H2O

8) K + Cl2 KCl

9) Al + HCl H2 + AlCl3

10) N2 + F2 NF3

11) SO2 + Li2Se SSe2 + Li2O

12) NH3 + H2SO4 (NH4)2SO4

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

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