Definition: This is a property of matter that can be identified without changing the identity of the substance.

Example: weight, color, odor, boiling point, density

Term:
Type term here

hint: ph

Explanation:

all eukaryotic cell have mitochondria : )

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.