M(k2s)=360*(25/100)=90gr
m(h2o)=360-90=270gr
плотность воды<span>1 г/см³</span>
V(h20)=270*1=270мл
Cl2+h2=hcl
hcl+naoh=nacl+h2o
nacl+o2=naoh+cl2
cl2+fe=fecl3
nacl+agno3=agcl+nano3
<span>Hg+HNO3=HgNO3+H2</span>
2Na+2H2O=NaOH+H2
NaOH+CO2=NaHCO3
2NaHCO3нагрев=Na2CO3+H2O
Na2CO3+Ca(OH)2=CaCO3+2NaOH
NaOH+HCl=NaCl+H2O