<em>1) C6H5CH3 + Cl2 = C6H5CH2Cl + HCl (Условия: свет);</em>
NaNO2+NaI+2HCl=NO2+I2+2NaCl+2H2O
Реакция горения 4P + 5O2 = 2P2O5
n(P) = m/M = 0.5 г/ моль = 0,2 моль.
1) Fe+CuSO4=FeSO4+Cu
2) MgCL2+KOH=<span>Mg(OH)2 + 2KCl</span>
<span>3) Na2CO3+BaCl=<span>2NaCl+BaCO3 </span></span>
<span><span><span>4) AgNO3+NaCl=NaNO3+AgCl↓</span>
<span>Ag+ +NO3− + Na+ + Cl− = Na+ + NO3− + AgCl↓</span>
<span>Ag+ + Cl− = AgCl↓</span></span></span>
<span><span><span>5) Na2O+CO3=Na<span>2CO3</span></span></span></span>