want to use concrete as main floor plz help
i am a new condo owner, and decided to re-do my floors. i had carpet in main living space, and laminate (which has turned out to be a double layer and very though second layer!) in the kitchen, hallway and bathroom.
i was thinking to lay laminate tongue in groove "wood" down, but then decided i would love to be able to just "clean up" the underlying concrete and use that as a main floor in all areas. my question is
A) CAN I DO THIS? lol? i'm really new at all this, and i am wondering if maybe i would have to seal it? i read a bit about stains, and "optional" gloss sealants, but i don't know if these are for floors specially pored as a main floor? or if there is no difference between that and what is existing under my carpet? anyone have experience with this? I have ripped up the carpet and the underlying cement is lovely (mostly), just some minor glue spots to get out,
B) one significant crack that i will have to fill (any suggestions??-i kind of like the aesthetic, but think a clear or some type of sealant/filler would be needed for functionality)?
C) the concrete under the kitchen however is a bit stained yellowish (from the glue i guess)-anyone have a good suggestion of remover aka to get it closer to it's original gray?
thank you so much for you time!!