Answer: According to the Arrhenius concept, an acid is a substance that causes an increase in the concentration of H in aqueous solutions
Explanation:
According to the Arrhenius concept, an acid is a substance that ionizes in the water to give hydronium ion or hydrogen ion and a bases is a substance that ionizes in the water to give hydroxide ion .
![HA(aq)\rightarrow H^+(aq)+A^-(aq)](https://tex.z-dn.net/?f=HA%28aq%29%5Crightarrow%20H%5E%2B%28aq%29%2BA%5E-%28aq%29)
![BOH(aq)\rightarrow B^+(aq)+OH^-(aq)](https://tex.z-dn.net/?f=BOH%28aq%29%5Crightarrow%20B%5E%2B%28aq%29%2BOH%5E-%28aq%29)
According to lewis concept , an acid is a substance that accepts electrons and a base is a substance that can donate electrons.
Answer:
The coordination sphere of a complex consists of <u><em>the central metal ion and the ligands bonded to it.</em></u>
Explanation:
The Coordination Compounds are sets of a central metal ion attached to a group of molecules or ions that surround it. They are also called metal complexes or simply complexes. Then they are compounds that have a central atom surrounded by a group of molecules or ions, the latter called ligands.
The central atom must have empty orbitals capable of accepting pairs of electrons, with the transition metals being the ones with the greatest tendency. Because of this, they can act as Lewis acids (electron pair acceptors). The ligands have unshared electron pairs, then acting as Lewis bases (electron pair donors).
When forming a complex, it is said that the ligands coordinate to the metal and the central metal and the ligands attached to it constitute the coordination sphere of the complex.
Finally, <u><em>the coordination sphere of a complex consists of the central metal ion and the ligands bonded to it.</em></u>
Answer:
H2O is the only thing that can be added.
Answer:
A. Kinetic energies of molecules increase.
B. Speeds of molecules increase.
C. Number of collisions per second increase.