Which of the following species is the oxidizing agent? 2 CuBr ? 2Cu + Br2
A) Cu
B) CuBr
C) Cu+
D) Br-
E) Br2
C
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In a battery, the following oxidation-reduction reactions are taking place: Mn2O3 + ZnO ? 2 MnO2 + ZnWhat is undergoing an oxidation as written?
A. Mn2O3 B. Zn C. MnO2 D. ZnO E. none of the above
Were latitude the only control of temperature, the isotherms would run straight across the maps from east to west. Describe one region of the world where this hypothetical isotherm pattern is actually observed.
What will be an ideal response?
Loihi is an excellent example of a(n) _____
A) ?subduction zone near the Hawai'ian islands B) new island forming under a hot spot beneath the Pacific plate C) exotic terrane accreted onto the westernmost region of North America D) extinct submerged volcano moving away from the East Pacific Rise
Iron has a density of 7.874 g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?
A) 7.629 g B) 60.00 g C) 94.48 g D) 472.4 g