Question

срочно потрібно!!!! 1. Допишіть праві частини у схемах реакцій, де це потрібно, та поставте коефіцієнти, перетворивши їх на рiвняння: a) C2H + O2 → CO2 + H2O D 6) CaO +H;O . B) SO2 + H2O→ 11 87.12.8​

Answer 1

a) C2H4 + 3O2 → 2CO2 + 2H2O

b) CaO + H2O → Ca(OH)2

c) SO2 + H2O → H2SO3

Answer 2

a) C2H + O2 → CO2 + H2O D 6 7 4 6

b) CaO + H2O → Ca(OH)2 B 1 1 1

c) SO2 + H2O → H2SO3 11 6 2 11

To balance the equations and determine the coefficients, we need to ensure that the number of atoms on both sides of the equation is equal. Let's balance the equations step by step:

a) C2H + O2 → CO2 + H2O To balance carbon (C), we need 2 CO2 on the right side. C2H + O2 → 2CO2 + H2O

To balance hydrogen (H), we need 2 H2O on the right side. C2H + O2 → 2CO2 + 2H2O

To balance oxygen (O), we need 3 O2 on the left side. C2H + 3O2 → 2CO2 + 2H2O

Therefore, the balanced equation is: C2H + 3O2 → 2CO2 + 2H2O

b) CaO + H2O → Ca(OH)2 To balance calcium (Ca), we need 1 Ca(OH)2 on the right side. CaO + H2O → Ca(OH)2

Therefore, the balanced equation is: CaO + H2O → Ca(OH)2

c) SO2 + H2O → H2SO3 To balance sulfur (S), we need 1 H2SO3 on the right side. SO2 + H2O → H2SO3

To balance hydrogen (H), we need 2 H2O on the left side. SO2 + 2H2O → H2SO3

To balance oxygen (O), we need 3 O2 on the left side. SO2 + 3H2O → H2SO3

Therefore, the balanced equation is: SO2 + 3H2O → H2SO3