From a laboratory process designed to separate magnesium chloride [MgCl2] into magnesium metal [Mg] and chlorine gas [Cl2], a student collected 35.45 grams of chlorine and 12.15 grams of magnesium. How much magnesium chloride salt (in grams) was involved in the process?

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

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.

answer; 4 electrons;