1)a) 2Na + 2H2O --- > 2NaOH + H2b) MgO + H2O ---> Mg(OH)2c) SnBr2 + 2KOH ---> Sn(OH)2 + 2KBrd) Nil2 + 2NaOH ---> Ni(OH)2 + 2NaIe) BiCl3 + 3NaOH ---> Bi(OH)3 + 3NaCI2)mX(OH)2=74uX+32+2=74X = 40X ---> Ca(wapń)Ca + 2H2O ---> Ca(OH)2 + H2
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1)
a) 2Na + 2H2O --- > 2NaOH + H2
b) MgO + H2O ---> Mg(OH)2
c) SnBr2 + 2KOH ---> Sn(OH)2 + 2KBr
d) Nil2 + 2NaOH ---> Ni(OH)2 + 2NaI
e) BiCl3 + 3NaOH ---> Bi(OH)3 + 3NaCI
2)
mX(OH)2=74u
X+32+2=74
X = 40
X ---> Ca(wapń)
Ca + 2H2O ---> Ca(OH)2 + H2