A. properties which can be observed since it's what you're physically viewing
Answer: The pure metal has low structural strength, magnesium is mainly used in the form of alloys- principally with 10% or less of aluminum, zinc, and manganese- to improve it's hardness, tensile strength, and ability to be cast, welded, and machined.
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Answer:
oxygen, carbon, hydrogen, nitrogen, and sulfur
Explanation:
