The following information is given for lead at 1 atm: boiling point = 1.740×103 °C Hvap(1.740×103 °C) = 858.2 J/g
melting point = 328.0 °C Hfus(328.0 °C) = 23.00 J/g
specific heat solid = 0.1300 J/g°C
specific heat liquid = 0.1380 J/g°C

A 29.30 g sample of liquid lead at 496.0 °C is poured into a mold and allowed to cool to 26.0 °C. How many kJ of energy are released in this process. Report the answer as a positive number.

What is the value of keq for the reaction expressed in scientific notation?

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons