The disposition of a U.S. real property interest by a foreign person (the transferor) is subject to income tax withholding (IRC section 1445). The transferee is the withholding agent. If you are the transferee, you must find out if the transferor is a foreign person.
Looking directly at the crucible when magnesium first reacts with oxygen can damage your eyes. 5 years ago Magnesium metal is burned in air forming magnesium oxide.
Magnesium will not react with cold water. Even finely powdered magnesium reacts only very slowly. Magnesium will react with gaseous water (steam) to. form magnesium oxide and hydrogen gas. You must know how to test for hydrogen gas. magnesium + steam magnesium oxide + hydrogen.