Реакция ионного обмена:

2MgSO4+4NaCL=2Na2SO4+2MgCl

2Mg(2+)+ 2SO4(2-)+4Na(+)+ 4CL(-)= 4Na(+) +  2SO4(2-) + 2Mg(2+) + 4Cl(1-)

    ПОМОГИТЕ ДОДЕЛАТЬ...КАААААК??

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