Subject: why are some salts dry when they actually contain water e.g. barium chloride?

I was reading in the book that it says that barium chloride contains water but yet it is not wet, and does not feel wet. that is why we refer to it as a hydrous salt. i asked my lecturer about this but she gave a brief answer and i do not fully understand why it is so. i tried searching answers in the internet but to no avail. thank you for your help.

Re: why are some salts dry when they actually contain water e.g. barium chloride?