A block of an unknown substance has a mass of 13.7 g. When 64.9 J of energy is put into this block, the temperature is raised from 28.0°C to 37.8°C.

What is the heat capacity of this substance?
(Report numerical answers to 3 digits)

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The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.