if you were making an observation of two substances, The five conditions of chemical change would be color chage, formation of a precipitate, formation of a gas, odor change, temperature change. i hope this helps
The higher temperature would be 100c since when you use the fromulas to convert them the other two are lower.
100F = 37.8 C and 310.7K.
100C = 237.6F and 373K.
100K = -173C and -253.8F
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http://www.h4hinitiative.com/hydration-science/hydration-lab/hydration-pregnancy-and-breastfeeding/c...