Question

Дописати рівняння, визначити суму коефіцієнтів: CaO + H2O; MgO + H2SO4​

Answer 1

CaO + H2O=Са(ОН)2 сума коефіцієнтів - 3

MgO + H2SO4​ = MgSO4​ + Н2 сума коефіцієнтів - 4

Загальна сума в двох рівнянь - 7

Answer 2

Adding Equations and Determining the Sum of Coefficients

To complete the equations and determine the sum of coefficients for the given chemical reactions, we'll follow the steps below.

1. Completing the Equations: - CaO + H2O: - The reaction between calcium oxide (CaO) and water (H2O) results in the formation of calcium hydroxide (Ca(OH)2). - The balanced equation for this reaction is: ``` CaO + H2O -> Ca(OH)2 ```

- MgO + H2SO4: - The reaction between magnesium oxide (MgO) and sulfuric acid (H2SO4) produces magnesium sulfate (MgSO4) and water (H2O). - The balanced equation for this reaction is: ``` MgO + H2SO4 -> MgSO4 + H2O ```

2. Determining the Sum of Coefficients: - For the equation CaO + H2O -> Ca(OH)2, the sum of coefficients is 1 (the coefficient of CaO) + 1 (the coefficient of H2O) = 2. - For the equation MgO + H2SO4 -> MgSO4 + H2O, the sum of coefficients is 1 (the coefficient of MgO) + 1 (the coefficient of H2SO4) = 2.

Therefore, the sum of coefficients for the given chemical reactions are: - CaO + H2O: 2 - MgO + H2SO4: 2