On a reaction pathway graph, the energy of the activated complex is always higher, always lower, sometimes higher, than that of the reactants or products.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.