Kelly has some sand in a bucket, but she thinks that there may be some salt mixed in with her sand. how can she determine if there is salt in the sand? a. if she leaves the bucket alone the salt will rise to the top. b. if she puts water in the bucket, the sand will dissolve. c. if she puts water in the bucket, the salt will dissolve. d. if she evaporates the sand the salt will be left behind.