Choose the overall cell potential for this redox reaction.

cd + hg22+ → cd2+ + 2hg. given: cd2+ + 2e− → cd(s) –0.40 and hg22+ + 2e− → 2hg(l) 0.79

a.) –0.19 v
b.) 0.19 v
c.) 0.91 v
d.) 1.19 v

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f