Is The charge of the complex equal the charge of the central metal ion ?

Hey mate here's your answer ⤵️

Please refer to the attachment for the answer ☝️

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.