1. Looks chipped, but it's not bad considering what happened...it's really how you would want the edge to fail, as shallowly as possible.
2. Very fixable. Take your sharpening stone and cut directly into it (not with a lot of force) as if you were slicing bread until you have removed the damage. This will keep the entire edge even, and will also remove the damaged steel below the chips (think a paper clip...when you break it, each end of the break has some weakened steel as well),
You will now see a flat reflecting light on the edge...work both sides of the edge at the established angle until you can no longer see that light reflecting (you will want a good light to check this).
At this point do one very high angle light pass on each side (like 45 degrees), then do several passes on each side (alternating each pass) just above the angle of the edge.
Here's two videos of me fixing similar damage...the process is a literal more elaborate bc I like a high polish, but you get the idea:
https://www.youtube.com/watch?v=MTs65hqG3tshttps://www.youtube.com/watch?v=3Q4QlyfMY583/4. see above for method...for stone, pick up a norton economy...it's cheap and will work very quickly in the above process...use a higher grit diamond or ceramic stone for the higher angle passes
5/6/7. mineral oil if you'll do food prep but wd40 works just fine...I only do it after use, and I do it every time after use, but keep in mind the more often you use it the more often that use will keep the rust off. Just use some trial and error...go without it and if you see some rust, well, put some oil on it
8/9. this will happen more so with the coating...just use some wd40 and a scotch brite pad and scrub them...you can put some elbow into it, but if it doesn't all come off no worries. If it really bothers you just use some sandpaper. It's normal
