Instruction: electrochemistry, please discuss each question with ya Section 1. A

Question

Instruction: electrochemistry, please discuss each question with ya Section 1. Activity Series Activity 1 1) To start the animation click start and then activity one. You will see four ionic solutions. Pick one of You and your partner will be working with a computer simulation that covers ur partner and write down your best answer. the four metals and follow the instructions on the screen. Please write down your observations (e.g. what reactions occurred) Repeat this procedure for the other three metals and make sure to write all your observations down. 2) Considering magnesium, zinc, copper, and silver metals, a) Which of the four metals you tested is the most reactive? Explain why. b) Which is the least reactive? Why? c) Arrange the metals in order of increasing reactivity. Locate the magnesium, zinc, copper, and silver in the standard reduction potential table. Is there a pattern between the reactivity of the metals and the table? Explain why or whynot. d)

Explanation / Answer

Q1

activity series of metals:

most reactiveLi K Ba Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H2 Cu Hg Ag Pt Au <  least reactive

note that most reactive materials will go from solid metal to aqueous metal and vice verse for least reactiv

Q2

for the metal listed, order is:

Mg < Zn < Cu < Ag

b)

least reactive must be silver, Ag, will form solid Ag

c)

increasing reactivity

Mg < Zn < Cu < Ag

d)

Mg2+ + 2 e Mg(s) 2.372;

Zn2+ + 2 e Zn(s) 0.7618;

Cu2+ + 2 e Cu(s) +0.337;

Ag+ + e Ag(s) +0.799

clearly, the eletrode potentials for reduction fit the activity series as expected

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