If meat has any unusual smells to it I would strongly suggest that you throw it away immediately. Chicken is especially subject to contamination due to microorganisms on the chicken and spread during processing, so this is one meat that you should be particularly careful with.
no
It isn't generally safe to refreeze raw food. This is especially true for chicken, which is contaminated with salmonella at scary-high rates. If the chicken has thawed, it isn't generally safe to refreeze it and eat it later. This is especially true if it is thawed in room-temperature water rather than being thawed in the refrigerator. Once thawed, the chicken should be cooked fairly quickly. Once cooked, it can then be frozen for later consumption.
Yes, the chicken will be safe at 50 degrees for a few hours. Never let a chicken set out in for more than an hour after it has thawed.
No they would have to be properly thawed before they could be eaten because of specific bacteria that live and breed in frozen foods as they would make you ill but nothing serious
Yes
It is safe to eat, and it won't even taste worse - depending on how long it was initially thawed.
No, it is not safe to refreeze any meat once it has thawed, however if you cook it you can then freeze it again.
The advice that is often repeated is that refreezing thawed meat is dangerous. This is not completely true. If the meat was thawed properly in the refrigerator, it is perfectly safe to refreeze. If it was thawed on the counter top or by other means, it should be cooked before freezing. Chicken that has been refrozen might suffer in quality - specifically in loss of moisture content, leading to a drier meat.
no
Is it safe to feed your dog a chicken that is alive?
If it was thawed in a fridge, it can safely be refrozen. The overall taste and texture may be affected, but is probabably better than wasting it.
yes it is healthy when you are pregnant