A physical change.
Physical change = can be reverted + doesn't change substance
Chemical = changes substance
Ionic, think about the way metals share electrons with other metals, resulting in malleability.
Answer:
In a conventional optical microscope, objects less than about 200 nanometers apart cannot be distinguished from one another. ... Although electron microscopes produce a detailed image of very small structures, they cannot provide an image of the proteins that make up those structures.
Answer:
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