A 15.0g block of aluminum at in initial temperature of 27.5° C absorbs 0.678 kJ of heat. What is the final temperature of the block? (The specific heat of Al is 0.902 J/g • °C.

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Compare and contrast physical changes with chemical changes.