A block of aluminum (C = 0.9 J/gºC) has been sitting in boiling water with a temperature of 99°C for 5 minutes. This hot block of aluminum is dropped into 280 grams of cool water (C =
4.18 J/g°C) that had a temperature of 16°C before the metal block was added. Afterwards,
the aluminum block and the water both have a temperature of 29°C. What is the mass of
the aluminum block?

the dissolution of polymer can be thermodynamically described in 2 steps.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.