Commercial cold packs consist of solid ammonium nitrate and water. Nh4no3 absorbs 25. 69 kj of heat per mole dissolved in water. In a coffee-cup calorimeter, 3. 40 g nh4no3 is dissolved in 100. 0 g of water at 21. 0 c. What is the final temperature of the solution? assume that the solution has a specific heat capacity of 4. 18 j/gk.

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.