Homework Help: science

Posted by jane on Sunday, September 27, 2009 at 4:32pm.

Technician A and Technician B are examining the same substance. Technician A records the mass, volume, and weight of the substance and decides that it is sugar. Technician B records the melting point, density, and boiling point of the substance and decides that it is salt. Which technician’s answer is more apt to be correct and why?

science - Pragmatist, Sunday, September 27, 2009 at 6:48pm
I'd go with the one who actually tasted his substance.
science - Ian, Sunday, September 27, 2009 at 8:47pm
Say you have two gallons of water in one bucket and one gallon in another. They would weigh different, the volume is different (1 gallon vs 2), and the mass would differ. However, they are the same substance.

However, if you boiled the water in these buckets, they would both boil around 100C.

With that in mind, which property would you trust more to identify a substance such as water?

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