Answer:
In Haloarenes the C atom to which the X group is attached is SP2 hybridized thus it is become difficult to replace it by the Nucleophile. Since arenes and Vinyl halides are electron rich molecules due to presenceof n bonds, they repel Nucleophile attacking them.
Answer:
earth I think like that because earth is the second planet
It's called a compound because different elements are held together by a chemical bond.
Crushing a can, breaking glass, cutting paper, boiling water, chopping wood, and mixing water and sand
