Answer : The correct option is, (A) ![[H_3O^+]=[OH^-]](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3D%5BOH%5E-%5D)
because one of each is produced every time an ![[H^+]](https://tex.z-dn.net/?f=%5BH%5E%2B%5D)
transfers from one water molecule to another.
Explanation :
As we know that, when the two water molecule combine to produced hydronium ion and hydroxide ion.
The balanced reaction will be:
Acid : It is a substance that donates hydrogen ion when dissolved in water.
Base : It is a substance that accepts hydrogen ion when dissolved in water.
From this we conclude that, the hydrogen ion are transferred from one water molecule to the another water molecule to form hydronium ion and hydroxide ion. In this reaction, one water molecule will act as a base and another water molecule will act as an acid.
Hence, the correct option is, (A)
Answer:
Explanation:
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. Three widely used definitions of atomic radius are: Van der Waals radius, ionic radius, and covalent radius.
Answer
b.
Explanation:
variable means change bro
<u>Answer:</u> The change in enthalpy of the reaction is -26.45 kJ
<u>Explanation:</u>
The given chemical reaction follows:
The enthalpy change of the reaction when 2 moles of HI is formed is 52.9 kJ
Now, the chemical reaction for which enthalpy change is to be calculated is:
Sign for enthalpy change will be reversed, because the reaction is reverse.
By Stoichiometry of the reaction:
When 2 moles of Hi is reacted, the enthalpy change of the reaction is -52.9 kJ
So, when 1 mole of HI will be reacted, the enthalpy change of the reaction will be = 
Hence, the change in enthalpy of the reaction is -26.45 kJ
