They make magnesium oxide, MgO.
Oxgyen is needed for aerobic respiration, which gives out energy.
not your business
Yes
No, it is not.
helium
gas
20.94 % in our atmosphere.
No, it is an element.
It makes magnesium sulphate, and copper.
When magnesium reacts with sulfur, they form magnesium sulfide with the chemical formula MgS. This compound is a binary ionic compound made of positively charged magnesium ions and negatively charged sulfide ions.
Hemoglobin.....
oxgyen