Which of the following redox pairs generate a potential of about -0.47 V? 2Ag(s) + Pb2+(aq) → 2Ag+(aq) + Pb(s) Cu2+(aq) + Pb(s) → Cu(s) + Pb2+( +(aq) Cu(s) + Pb2+(aq) → Cu2+(aq) + Pb(s) 2Ag+(aq) + Pb(s) → 2Ag(s) + Pb2+(aq) QUESTION 2 Which is the correct Gibbs-Helmholtz relationship? AH = AS - TAG AH AG-TAS ASAH TAG AG = AH-TAS QUESTION 3 Which is the strongest oxidizing agent? ○ 03(9) F˜(aq) 02(9) F2(g)

Wouldn't C change at all different times(t)?

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O 4 Question 7 of 15 ---x, m lb lb ^4) ENG

An L-shaped structure is supported at A and D and subjected to two distributed loads and one concentrated load. Find: (1) RAX, the x-component of the reaction at A (2) RAy, the y-component of the reaction at A (3) RDx, the x-component of the reaction at D (4) RDy, the y-component of the reaction at D Flb w lb/ft w lb/ft Hft Lft Lft Lft Lft Answer all numeric solutions with five significant figures. H= 2.66 ft w = 95 Ib/ft F = 191 Ib L= 4.61 ft

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Classify the structures in the Figure. Indicate if stable or unstable. If unstable, indicate the reason. If the structure is stable, indicate if determinate or indeterminate. If indeterminate, specify the degree. hinge hinge Unstable, number of reactions are not sufficient Geometrically unstable stable, determinate Stable, Indeterminate 1°