Which layer underground where all empty spaces are filled with a combination of air and water

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

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.

you need to have a picture of the atom that way we can answer it