What is the difference between the uses of silicon and silica?

metal silicon (si) is industrially purified elemental silicon. it is mainly used to produce organic silicon, prepare high-purity semiconductor materials, and prepare alloys for special purposes. (1) produces silicone rubber, silicone resin, silicone oil and other silicones silicone rubber has good elasticity and high temperature resistance. it is used to make medical supplies, high temperature…