In non-tropical countries, the major component of sand is silica, and so the chemical formula for sand is therefore SiO2. In silica, the ratio of the number of silicon atoms to the number of oxygen atoms is 1:2.Know More
In sand, this silica usually exists in the form of quartz. Quartz has a chemical formula of SiO2 and adopts a crystal structure where every silicon atom is attached to four oxygen atoms and every oxygen atom is attached to two silicon atoms. In some countries, sand is also made up of calcium carbonate. The chemical formula for calcium carbonate is CaCO3.Learn more about Chemistry
The chemical formula of a polyester is (R-OCO-R)n, in which each R is a hydrocarbon. Polyesters are formed by the reaction between dicarboxylic acids and diols. The most common polyester, polyethylene terephthalate, or PET, is formed from terephthalic acid and ethane-1,2-diol. Polytrimethylene terephthalate is formed from terephthalic acid and propane-1,3-diol.Full Answer >
A material that can be represented by a chemical formula is either a mixture or a pure substance. Mixtures, or compounds, can be represented by a chemical formula to denote which atoms make up their composition. Pure substances, such as water, can also be represented by chemical formulas.Full Answer >
Ammonia's chemical formula is NH3. Composed of nitrogen and hydrogen, this colorless gas has a molar mass of 17.03 g/mol (grams/mole).
The chemical formula for chromium (III) acetate is notated as Cr(C2H3O2)3. The formula contains the symbol Cr for chromium. The chemical formula for acetate, C2H3O2, uses the symbols C for carbon, H for hydrogen and O for oxygen.Full Answer >