If 800.0 J of heat is absorbed by 120.0 g of water at 25.00
°C, what is the final
temperature when thermal
equilibrium is reached? The
specific heat of water is 4.184
J/g °C.

the answer is a. co2, this would be colder than the : )

explanation:

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.