Water is 11.2% by mass hydrogen. how many kilograms of water would contain 5.8 g of hydrogen?

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

< 3

the answer is a and have a great day

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.