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quote:Originally posted by BrocaOMG I feel so stupid...<laughing> ok ok go ahead point at me and laugh then. <hanging my head in shame> :-)
quote:Originally posted by cannabinoidThere are some substances which have significant differences between freezing and melting points, too. Typical nutrient agar, the material used in Petri plates to grow bacteria, melts around 100 C but will not resolidify until it gets down to 40 C. That stuff is a mixture of different materials, though. Pure compounds tend to behave a little "better" and have freezing and melting points closer together.This message brought to you by The Council of People Who Are Sick of Seeing More People