2. the combustion of heptane (c7h16) in oxygen spontaneously occurs. the products of the reaction are carbon dioxide and water vapor. the enthalpy of this reaction is –2877.5 kj. using the given information, write the complete thermochemical equation for this reaction. explain how you developed this equation, and specify what the equation tells us about the reaction?

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

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.