Question

2) NO + O2 ─ NO2; 3) HCl + O2 ─ H2O + Cl2; 4) PCl3 + Cl2 ─ PCl5; 5) Fe + H2O ─ Fe3O4 + H2; 6) CH4 + I2 ─ CH3I + HI ; 7) Zn + HCl ─ H2↑ + ZnCl2; 8) CaCl2 + Na2CO3 ─ CaCO3 + NaCl; 9) NaBr + Cl2 ─ NaCl + Br2; 10) Ca + HCl ─ CaCl2 + H2↑ ; 10) Mg + O2 ─ MgO; 11) H2S + O2 ─ H2O + SO2 ; 12) Fe2O3 + H2 ─ Fe + H2O 13) CaCl2 + NaOH ─ Ca(OH)2 + NaCl; 14) H2 + O2 ─ H2O; 15) Zn + CuCl2 ─ Cu + ZnCl2 ; 16) NH3 ─ N2 + H2 ; 17) Cu + S ─ CuS ; 18) AgF + NaCl ─ AgCl + NaF ; 19) CaCO3 ─ CaO + CO2↑; 20) CuBr2 + NaOH ─ Cu(OH)2 + NaBr ; 21) Fe + H2O ─ H2↑ + Fe2O3 .

Answer 1

Ответ:

2NO+O2=2NO 4HKL+O2=2H2O

+4HCL P3CL+2CL=P5CL 3Fe

+8HO4=Fe304+8H

CH4+CL2=CH3CL+HCL

Zn+2H2CL=ZnCL2+H2

Объяснение:

это 2, другие не знаю

Answer 2

It looks like you've provided a list of chemical reactions. These reactions represent various chemical transformations between different elements and compounds. If you have any specific questions or need explanations about any of these reactions, please feel free to ask, and I'll be happy to provide more information.