Chemistry Homework Help

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Activity Series

Q. Based upon the activity series below, which of the following statements are correct? Strongly Reducing K(s) → K+(aq) + e- Al(s) → Al3+(aq) + 3 e- Cr(s) → Cr3+(aq) + 3 e- Ag(s) → Ag+(aq) + e- Au(s) → Au3+(aq) + 3 e- Weakly Reducing (i) Ag can reduce Au3+ but not Cr3+. (ii) Cr is a better reducing agent than Al. (iii) K+ is a better oxidizing agent than Au3+. (iv) Ag+ is a better oxidizing agent than K+.

Solved • Dec 28, 2019

Activity Series

Q. Luis went camping and found a bag with 2500 silverish looking metal cubes in a cavern in the hills of Yosemite. These cubes have a height of 10 cm. He believes it is either silver, aluminium, or nickel. Remembering you were a chemistry genius, Luis promises to give you 500 cubes of the metal if you can tell him what the metal it is. Using 250 mL of each following solution at the stated concentrations. Assuming the metal reacts with B, C, D and F but does not react with A or E. Identify Luis's metal.

Solved • Dec 5, 2019

Activity Series

Q. Use the emf series to arrange the following species in order of increasing strength as reducing agents: Hg, Fe, Sn.

Solved • Nov 20, 2019

Activity Series

Q. According to the activity series, which of the following redox reactions will occur? (Select all that apply.) (a)Fe(s) + NiBr2(aq) → FeBr2(aq) + Ni(s) (b)Sn(s) + Pb(NO3)2(aq) → Sn(NO3)2(aq) + Pb(s) (c)Mg(s) + BaI2(aq) → MgI2(aq) + Ba(s) (d)Pb(s) + PtCl2(aq) → PbCl2(aq) + Pt(s) (e)Zn(s) + CaBr2(aq) → ZnBr2(aq) + Ca(s)

Solved • Nov 10, 2019

Activity Series

Q. Complete and balance the equation for this single-displacement reaction. Phases are optional. equation: AgNO_{3} + Al -> AgNO3+Al⟶

Solved • Oct 22, 2019

Activity Series

Q. Which metals are oxidized by 1.00 M NiCl2 solution? Al, Cu, Zn, Pb, Ca

Solved • Oct 17, 2019

Activity Series

Q. 19. According to the activity series, will the following reaction occur? If no, write "no reaction". If yes, write the oxidation states of each element. ZnCl2(aq) + Cu(s) → Zn(s) + CuCl2(aq)

Solved • Sep 24, 2019