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Nostalgy
@Nostalgy
August 2022
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СРОЧНО!!!!!!!!!!!!!!!!!!!!
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Sakamaki2509001
Допустим...
3)2Na + 2H2O = 2NaOH + H2
2NaOH + H2SO4 = Na2SO4 + 2H2O
Na2SO4 + CaCl2 = 2NaCl + CaSO4
4)
Ba + 2HCl = BaCl2 + H2
2KOH + CO2 =К2СО3+ Н2О
2NaNO3+K2SO4-Na2SO4+2KNO3
Na2CO3+Ca(NO3)2=2NaNO3+CaCO3 (реакция обратимая)
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Answers & Comments
3)2Na + 2H2O = 2NaOH + H2
2NaOH + H2SO4 = Na2SO4 + 2H2O
Na2SO4 + CaCl2 = 2NaCl + CaSO4
4)Ba + 2HCl = BaCl2 + H2
2KOH + CO2 =К2СО3+ Н2О
2NaNO3+K2SO4-Na2SO4+2KNO3
Na2CO3+Ca(NO3)2=2NaNO3+CaCO3 (реакция обратимая)