What is the final temperature of a 100. gram sample of water at 90.0°C if it gives off 3.00x10 Joules of heat as it cools? The C of water is 1.00cal/g°C.

Aluminum–lithium (al-li) alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. a commercial aircraft skin material having a density of 2.47 g/cm3 is desired. compute the concentration of li (in wt%) that is required.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size