Question

Найдите реакции замещения: a) H2O2 H₂O + O₂1 6) Na + S → Na2S B) N2 + H2 + NH3T r) CO2 + Mg MgO + CL A) Al + H2SO4 → Al2(SO4)3 + H2T e) MgO + HNO3 → Mg(NO3)2 + H2O *) Ca(OH)2 + H3PO4 → Caz(PO4)21 + H2O 3) BaCl2 + Na2CO3 → BaCO3+ + NaCl u) Pb(NO3)2 + KOH → Pb(OH)2 + KNO3 K) H2S + Br2 → HBr + S n) NaNO3 → NaNO2 + O21 M) H20 + P205 H3PO4 H) SICIA + Zn → Si + ZnCl2 0) NO + O2 + NO21 ации -> IM -

Answer 1

Ответ: а),r),A),K),Н)

Answer 2

Reactions of Substitution:

a) H2O2 → H₂O + O₂ - This is a decomposition reaction of hydrogen peroxide (H2O2) into water (H₂O) and oxygen gas (O₂) [[1]].

b) N2 + H2 → NH3 - This is a synthesis reaction where nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3) [[2]].

c) CO2 + Mg → MgO + C - This is a redox reaction where carbon dioxide (CO2) reacts with magnesium (Mg) to form magnesium oxide (MgO) and carbon (C) [[3]].

d) Al + H2SO4 → Al2(SO4)3 + H2 - This is a single displacement reaction where aluminum (Al) reacts with sulfuric acid (H2SO4) to form aluminum sulfate (Al2(SO4)3) and hydrogen gas (H2) [[4]].

e) MgO + HNO3 → Mg(NO3)2 + H2O - This is a double displacement reaction where magnesium oxide (MgO) reacts with nitric acid (HNO3) to form magnesium nitrate (Mg(NO3)2) and water (H2O) [[5]].

f) Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O - This is a double displacement reaction where calcium hydroxide (Ca(OH)2) reacts with phosphoric acid (H3PO4) to form calcium phosphate (Ca3(PO4)2) and water (H2O) [[6]].

g) BaCl2 + Na2CO3 → BaCO3 + 2NaCl - This is a double displacement reaction where barium chloride (BaCl2) reacts with sodium carbonate (Na2CO3) to form barium carbonate (BaCO3) and sodium chloride (NaCl) [[7]].

h) Pb(NO3)2 + 2KOH → Pb(OH)2 + 2KNO3 - This is a double displacement reaction where lead nitrate (Pb(NO3)2) reacts with potassium hydroxide (KOH) to form lead(II) hydroxide (Pb(OH)2) and potassium nitrate (KNO3) [[8]].

i) H2S + Br2 → 2HBr + S - This is a redox reaction where hydrogen sulfide (H2S) reacts with bromine (Br2) to form hydrogen bromide (HBr) and sulfur (S) [[9]].

j) NaNO3 → NaNO2 + O2 - This is a decomposition reaction of sodium nitrate (NaNO3) into sodium nitrite (NaNO2) and oxygen gas (O2) [[10]].

k) H2O + P2O5 → H3PO4 - This is a synthesis reaction where water (H2O) reacts with phosphorus pentoxide (P2O5) to form phosphoric acid (H3PO4) [[11]].

l) SiCl4 + 2Zn → Si + 2ZnCl2 - This is a redox reaction where silicon tetrachloride (SiCl4) reacts with zinc (Zn) to form silicon (Si) and zinc chloride (ZnCl2) [[12]].

m) 2NO + O2 → 2NO2 - This is a redox reaction where nitrogen monoxide (NO) reacts with oxygen gas (O2) to form nitrogen dioxide (NO2) [[13]].

Please note that the reactions provided above are based on the information available from search results and may not cover all possible reaction conditions or variations.