Answer to Question 1Aluminum is made from sodium aluminum through a smelting pot. Aluminum comes from bauxite ore.
Aluminum is one of the most common metals known on earth. Because of its availability, light weight, heat
reflectivity, corrosion resistance, and electrical conductivity, aluminum is often used in place of steel. Aluminum
accounts for about one-seventh of the earth's core and is found in many forms.
Answer to Question 2Brass is a mixture of zinc and copper. It is used in devices, such as musical instruments, that require a hard,
noncorrosive alloy. Bronze is a mixture of tin and copper. It is used to coat other metals to prevent corrosion
This young child is pulling at the ear and acting fussy, two important signs of otitis media.
Spectra of a Metal-Poor and a Metal-Rich Star
The nucleic acids DNA and RNA are made from chains of nucleotides.
Anatomically modern humans left archaeological clues, including evidence of burials, which indicate
The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
Structure of a Sterol Rather than being made from fatty acids