Объяснение:
Mg+HgJ2=MgJ2+Hg
BaCl2+K2SO4=BaSO4+2KCl
2AlCl3+3Ba(OH)2=2Al(OH)3+3BaCl2
Al+3HgCl=AlCl3+3Hg
Mg(NO3)2+Na2CO3= MgCo3+2NaNO3
3K+AlBr3=3KBr+Al
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Verified answer
Объяснение:
Mg+HgJ2=MgJ2+Hg
BaCl2+K2SO4=BaSO4+2KCl
2AlCl3+3Ba(OH)2=2Al(OH)3+3BaCl2
Al+3HgCl=AlCl3+3Hg
Mg(NO3)2+Na2CO3= MgCo3+2NaNO3
3K+AlBr3=3KBr+Al