Mayor Robert Garcia and City Manager Patrick H. West presented the City of Long Beachâs Proposed Fiscal Year 2017 Budget. View the Budget.
Silica Defined. Silica is another name for the chemical compound silicon dioxide. Each unit of silica includes one atom of silicon and two atoms of oxygen. If you have never heard of silica before, you might be surprised to hear that you probably come into contact with it every day.
The chemical compound silicon dioxide, also known as silica or silox (from the Latin  silex), is the oxide of silicon, chemical formula Si O 2, and has been known for its hardness since the 9th century. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.ilicon dioxide is attacked by hydrofluoric acid (HF). HF is used to remove or pattern silicon dioxide in the semiconductor industry. Wikipedia for Schools is a selection taken from the original English-language Wikipedia by the child sponsorship charity SOS Children.