Урок – творческая лаборатория

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  • ( ) ( ) ( ) - , ,

  • (Al, Na, Mg, Be) .

  • 5. 2.1. 3. 4.6. 7.!7.

  • (, , , )

  • , .

  • , , , 1, , . . . 2, . , , 4, .

  • :

  • + (+) + - + (-) -

    : NaCl NaCl Na+ + Cl- Na+ + 1e- = Nao1e-2A + 2 Cl- 2e- = Cl2o 2e-1

    2 Na+ + 2 Cl- = 2 Nao + Cl2 2 NaCl 2 Nao + Cl2

  • 2

    , , ( ) . .

  • ( + - )

    Li+ K+ Ca2+ Na+ Mg2+ Al3+ Mn2+ Zn2+Sn2+ Pb2+ H+ Cu2+ Hg2+ Ag+ Pt2+ Au2+

    +- n+ + n e- = Meo 2H+ Men+ + n e- = Meo2 H2O + 2e- = H2 + 2 OH- + 2e- ( 2H+ + 2e- = H2 ) 2 H2O + 2e- = H2 + 2 OH- = H2

  • + I- Br- S2- Cl- OH- SO42- CO32- NO3- F- 4- - 4- 2 2 - 4 - = 2 + 4 + ( n- ) = 2 2 + ( n- Kon- - ne- = Koo + O2 )

    n e- = Men+ -

  • 4 , .BaCl2Ba(NO3)2AgNO3AgF 12341. 2. !

    1) ) 2Cl- -2 Cl202) ) 2F- -2 F203) ) 2+ + 2 04) ) 2+ + 2 20) Ag+ + Ag) 2N03- -2 2NO2 + 02

  • q, m = kq = kIt k , /

  • , , , . : . . 5 , , 1 2 ?

  • 1 24314 2 11224 3 13112

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  • , , ! ! ! , . , . , , , - . , , - , .

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