How much heat is released when 80 grams of NaOh (molar mass= 40 g) dissolve in water?

How many grams of glucose C6H12O6 (molar mass= 180g) must be burned to produce 180.4 KJ?

How much heat is absorbed in the formation of 1.00 mole of HI (g) from H2 (g) and I2 (g)?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth