Which one is a true statement about endothermic reactions?
a. energy is absorbed making it feel colder.
b. the reaction container always feels hot.
c. the reactants have less heat energy than the products.
d. more heat is given off than is put into the reaction.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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