Use Hess's law and the changes in enthalpy for the following two generic reactions to calculate LaTeX: \DeltaΔH for the reaction 2A + B2C3LaTeX: \longrightarrow⟶ 2B + A2C3.

2A + 3/2 C2 LaTeX: \longrightarrow⟶ A2C3 LaTeX: \DeltaΔH=-1874 kJ

2B + 3/2 C2 LaTeX: \longrightarrow⟶ B2C3 LaTeX: \DeltaΔH = -285 kJ

Group of answer choices

-2159

+1589

-1589

+2159

Pauling and lewis questioned the extreme definitions of bonds. they wondered if bonds might be described somewhere in between the two extremes (covalent and ionic). on the basis of experimental data,pauling confirmed that bonds could be ionic, covalent, and for those, in between, exhibit a degree of ionic character. he theorized that the major factor was how strongly the atoms in the bond attracted the electrons. pauling called this factor - the tendency of an atom to attract electrons in a bond.

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.

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?