2Ba + O2 = 2BaO
Ba(0) -2e = Ba(+2) 2 в-ль, ок-ие
O2(0) +4e = 2O(-2) 1 ок-ль, в-ие
BaO + H2O = Ba(OH)2
BaO + H2O = Ba(+2) + 2OH(-)
Ba(OH)2 + H2SO4 = BaSO4 + 2H2O
Ba(+2) + 2OH(-) + 2H(+) + SO4(-2) = BaSO4 + 2H2O
1) Zn + H2SO4 = ZnSO4 + H2
H2 + S = H2S
2) Zn + S = ZnS
ZnS + H2SO4 = ZnSO4 + H2S
<span>4LiNO3 = 2Li2O+4NO2+O<span>2
</span></span><span>2Cu(NO3)2 = 2CuO+4NO2+O<span>2
</span></span>2NaNO3 = 2NaNO2 + O2
2Mg(NO3)2 = 2MgO +4NO2+O2
<span>Hg(NO3)2 = Hg+2NO2+O<span>2
</span></span>одну из них
<span>NH4NO3 = N2O+2H2O (190-245</span>°C)
<span>2NH4NO3 = N2+2NO + 4H2O (250-300</span>°C)
<span>2NH4NO3 = 2N2+O2 + 4H2O (</span>выше<span> 300</span>°C)
<span>NH4NO2 = N2+ 2H2O</span>
Здравствуйте.
<span>2NaF + CaCl</span>₂ <span>= 2NaCl + CaF</span>₂
2Na⁺ + 2F⁻ + Ca²⁺ + 2Cl⁻ = 2Na⁺ + 2Cl⁻ + CaF₂
<span> F⁻ + Ca²⁺ = CaF₂</span>