What does mg stand for in chemistry

Mg is an element that stands for Magnesium.

Mg is the chemical symbol for Magnesium. 

- - In relation towards chemistry, Mg is equal to and standing for magnesium(mg).

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

Answerchemical;