how come if you put two exactly the same solids next to each other they won’t bond?

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Like if you had a gold bar and placed them next to each other. They’re the same atom? I have a basic understanding in chem but still so much confused me

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Anonymous 0 Comments

If you took two random objects and pressed them together, they would look a lot like taking two chunks of mountainous land and pressing them together. There’s almost no contact area between them; they only touch at a couple of the mountaintops and nowhere else.

This is what ‘flat’ surfaces look like on the microscopic level. If we carefully flatten and polish a material, it *will* actually stick, but even our best polishing techniques are far from perfect.

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