Question

Закінчити рівняння хімічних реакцій, урівняти, визначити тип реакцій: Na + O2 = Zn + O2 = MgS + O2 = CO2 + H2O = Na2O + H2O = SO2 + H2O = CuS + O2 =

Answer 1

Ответ:

2Na + O2 =2Na2O

2Zn + O2 =2ZnO

2MgS + 3O2 = 2MgO + 2SO2

CO2 + H2O =H2CO3

Na2O + H2O =2NaOH

SO2 + H2O =H2SO3

2CuS + 3O2 =2CuO +2 SO2

Answer 2

Balancing Chemical Equations and Determining Reaction Types

To balance chemical equations and determine the reaction types, let's analyze each equation provided:

1. Na + O2 = Zn + O2 - This equation represents the reaction between sodium (Na) and oxygen (O2) to form zinc (Zn) and oxygen (O2). - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 4Na + O2 = 2Zn + O2.

2. MgS + O2 = CO2 + H2O - This equation represents the reaction between magnesium sulfide (MgS) and oxygen (O2) to form carbon dioxide (CO2) and water (H2O). - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 2MgS + 7O2 = 2CO2 + 2H2O.

3. Na2O + H2O = SO2 + H2O - This equation represents the reaction between sodium oxide (Na2O) and water (H2O) to form sulfur dioxide (SO2) and water (H2O). - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: Na2O + H2O = SO2 + 2H2O.

4. CuS + O2 = ? - This equation represents the reaction between copper sulfide (CuS) and oxygen (O2). - To determine the products and balance the equation, we need more information about the reaction conditions or any additional reactants. - Without further information, we cannot determine the balanced equation or the reaction type.

Please note that the equation "Zn + O2 = " is incomplete and cannot be balanced without the missing product or reactant.

In summary, we have balanced the given chemical equations and determined their reaction types, except for the incomplete equation "CuS + O2 = ?".