<span>4 P + 5 O2 = 2 P2O<span>5
</span></span><span>NO2 + SO2 = NO + SO<span>3
</span></span><span>C + 2 H2 = CH<span>4
</span></span><span>2 ZnS + 3 O2 = 2 SO2 + 2 ZnO
</span><span>CuO + H2SO4 = CuSO4 + H2O</span>
<span>BaO + H2SO4 = BaSO4 + H2O
</span>2NaHCO3+H2SO4=2СO2+2H2O+Na2SO4
<span>Ba + 2 HCl = BaCl2 + H<span>2
</span></span><span>AgNO3 + HCl → AgCl + HNO<span>3
</span></span><span>FeCl2 + 2 KOH = Fe(OH)2 + 2 KCl</span>
Дано:
V(крови)=5 л = 5000 мл
ρ(крови) = 1,05 г/мл
ω(С6Н12О6)= 0,1%
Найти:
m(C6H12O6)=?
Решение.
m(крови) = 5000 мл*1,05 г/мл = 5250 г
m(C6H12O6)=5250*0.1%/100% = 5.25 г
Ответ: 5,25 г
N2+o2=2NO; NO+O2=2NO2 (NO+O3=NO2+O2); 2NO2+H2=hNO2+HNO3; NH3+HCL=NH4CL...
NH4CL+KNH2=2NH3+KCl;
4NH3+5O2=4NO+6H2O; 2NO+O2=2NO2; H2+2NO2=HNO2+HNO3; 4Mg+10HNO3=4MG(NO3)2+N2O+5H2O;
W(NaOH)= 23 + 16 + 1 = 40
w(O)= 16/40 * 100 = 40 \%
1) CrCl3+3NaOH=Cr(OH)3+NaCl
2)Pb(NO3)2+2HCl=PbCl2+2HNO3
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