system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible to physically cleave a chemical bond?

I'm wondering if it's possible to cleave covalent or ionic bonds using an extremely sharp knife made out of a material such as metallic hydrogen so that the electrons are much closer to the atoms of the knife and doesn't create any electrostatic repulsion which would repel the molecule away.

I'm also wondering if it's possible to rip molecules apart by having a strongly negatively charged pole and a strongly positively charged pole and a polar molecule in between those two poles so that the negative and positive poles of the molecule moves to the opposite charge, breaking their bonds.
gpt
Yes, it is possible and you don't even have to fancy things such as metallic hydrogen knives. 

Shear stress is a well-known problem when working with large molecules. For example, suction of a pipette can cause DNA to be cleaved on the edge of the pipette tip.