REPORT a Arrange Ca Ag and 2n in arder of their activities, listing the mos Arra
ID: 560815 • Letter: R
Question
REPORT a Arrange Ca Ag and 2n in arder of their activities, listing the mos Arrange Mg. H and Ag in order of their activities, listing the most active first. 5 Arrang all fre ofthe metals (excluding hydrogen) in an activity series, listing the most active first. 6) 6. On the basis of the reactions observed in the six test tubes, explain why the position of hydrogen cannot be fixed exactly with respect to all of the other elements listed in the activity series in Question 5 7. What additional testís) would be needed to establish the exact position of hydrogen in the activity series of the elements listed in Question 5? Answer the question in full sentences. 8. On the basis of the evidence developed in this experiment: (a) Would silver react with dilute sulfurie acid? Why or why not? (b) Would magnesium react with dilute sulfuric acid? Why or why not?Explanation / Answer
Based on the activity series or the reactivity series,which is a series of metals arranged in the order of their reactivity from most reactive to the least reactive, the given metals can be arranged as follows:
K>Na>Ca>Mg>Al>Zn>Fe>Sn>Pb>H>Cu>Hg>Ag>Au[activity series or the reactivity series]
3)Zn(most reactive)>Cu>Ag
4)Mg>H>Ag
5)Mg>Zn>H>Cu>Ag
6)Hydrogen cannot exist in its elemental form as a single H atom, but as H2 molecule.So when displaced by other metals or it does not separate as H-atom but H2 molecule.Moreover,it cannot be categorized as a metal as it resembles both metals and non-metals in its charcteristics.
It has one valence electron like alkali metal but it forms H2 or diatomic state like non-metallic gases N2,O2,F2
For all these regions it is not placed in the activity series of metals
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