Which of the following pieces of evidence suggests there was a chemical change? Change in color
Change in shape
Change in size
Change in state

Change in colour will be the answer.

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cutt. ly/lxkFVRg (remove space)

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

hope it

and ur welcm

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in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.