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 (from the Latin silex), is an oxide of silicon with the chemical formula SiO2. It has been known for its hardness s â¦ ince antiquity. large amount of energy is required to overcome these intermolecular forces and thus SiO2 has a high melting point. Note: no silicon-oxygen bonds are broken during melting, just intermolecular forces between SiO2 molecules.