Question

es for each and 6, use +2 oxidation Part 2 Complete and balance the equations. Include the physical states for element/compound Record your observations before and after each reaction. You will use your observations to help you determine the order of activity of these metals. Reaction Observations yellow-brown color (1) Zn + Fe(NO3)3(e) no reaction (2) Zn + MgSO4 (a) (3) Zn + Al(NO3)3 (*) no reaction Clear brownish substance on the surface (4) Mg + Al(NOs) () Copper looks like its multing (5) Cu + H2SO4 (aa) (6) Cu + AgNO3(aq) copper disolved into a gray sold w blue solution blue solution to a dart yellow (7) Fe + Cu(NO3)2 (aq) (8) Fe + H2SO4 (aa) . tiny bubbles

Answer 1

Date : Page No. a Qus. a) 32est 26 (NO), (aq) Observation - Yellow to car - 3 Zn (NO), + 2 fe css colourless or pale yellow solution No reaction - 6) Zniat ma soy cag) No recution takes play because zinc is less reaction than magnesum. Clear solution U Znost AL(NO3)3 cag - No reactions - o - 3 No reaction takes than Aluminuem place as solution Zin is reencins less recutive clear . d) 3 Mg (s) + 2 AL(NO) z raq) 3 mg (NO3)₂ + 2 AL 15) OL) Observation - A brown precipitat, is observed on the sulau Magnesium is more Meaili thane Aluminium e) Cu (s) + H₂SO4 lag) Copper does not dilute sulphuric acid . But on heating with concentratid Sulphure aid, a Redox recution occurs and the acid gets reduced to Sulphor Dioxid (SO2). Cu (s) + 2H2SO4 lag) - Cu soy t 502 (9) + 240 lan- cally

Date : Page No. 1 Cu (s) + 2 AgNO3 Cag) - Cu(NO3) at & Ag (5) - Observation - The reaction takes plau with the formation of a ble solution and a gray siluc precipitals on the surface I The reaction takes place because Copper is more reaction than siluer - 2 Fe (6) + 3 Cu(NO3)2 cag - 26(NO3)₃ + 3 Cu (s) (ag) Observation - The recution proceeds with - the change of olution colous from bleu to dark yellow The reaction occurs because Iron (fe) is more reacten than Copper (Cu). h) ferot H₂SO4 (aq) - Te soy (ag) + H₂(g) Au Obserwation - The colour of the solution - changes from colourless to иш 2 дни, Realtion takes plain because Iron is now recutius than Hydrogen G Alter observing the above recutions of these metals, zn, life, Mg, Al, Cu, H, Age The order of the actunity series in decreasing orderisa I Mg > ALY Zn> Fe > H > Cu > Ag /