1) CaCl2+2AgNO3=2AgCl+Ca(NO3)2
2) Ca(NO3)2+2NaOH=Ca(OH)2+2NaNO2
3) Ca(OH)2= CaO+H2O
4) CaO+CO2=CaCO3
10. 1
11.2
12.1
13.4
14.3
15 4
0,65г хл
Zn+H2SO4=ZnSO4+H2
65г 22,4л
m(Zn)= 6,5*10%/100%=0,65г
х= 0,65*22,4/65=0,224л
2Na + 2H2O - > 2NaOH + H2|
NaOH + H2CO3(изб.) - > NaHCO3 + H2O
NaHCO3 + NaOH - > Na2CO3 + H2O
Na2CO3 + H2SO4 - > Na2SO4 + CO2| + H2O
Na2SO4 + BaCl2 - > 2NaCl + BaSO4|
CaC2+2H2O-->C2H2+Ca(OH)2
3C2H2-->C6H6
C6H6+HNO3-->C6H5NO2+H2O