It is an element.
Starch is an organic compound.
Gasoline is a compound. It is a hydrocarbon.
Salt water is a mixture of water and salt, oxygen is a compound, and air is a mixture of gases like nitrogen, oxygen, and carbon dioxide. Oxygen is an element found in the air, but salt water does not contain oxygen as an element.
It's a compound. H2O2 is hydrogen peroxide. It as two different elements that is what a compound is.
A compound: any formula that contains more than one kind of atomic symbols represents a compound.
Silicon (Si) is an element, like oxygen, gold, carbon, or helium. It is not a compound and contains no compounds. Perhaps you meant silcone, which is a complex compound containing Si-O groupings. Wikipedia describes silicone thus: "More precisely called polymerized siloxanes or polysiloxanes, silicones are mixed inorganic-organic polymers with the chemical formula [R2SiO]n, where R = organic groups such as methyl, ethyl, and phenyl. These materials consist of an inorganic silicon-oxygen backbone (…-Si-O-Si-O-Si-O-…) with organic side groups attached to the silicon atoms, which are four-coordinate."
It is a compound and of heterogeneous mixture. Considering that it has many ingredients that do not uniformly cohere into one single substance.
Starch is an organic compound.
Gasoline is a compound. It is a hydrocarbon.
No. It is a heterogeneous mixture.
Salt water is a mixture of water and salt, oxygen is a compound, and air is a mixture of gases like nitrogen, oxygen, and carbon dioxide. Oxygen is an element found in the air, but salt water does not contain oxygen as an element.
It's a compound. H2O2 is hydrogen peroxide. It as two different elements that is what a compound is.
A compound: any formula that contains more than one kind of atomic symbols represents a compound.
silicon is the name of the element. A silicone is a type of polymeric compound of silicon that contains a silicon-oxygen backbone and alkyl groups (e.g. CH3) attached to the silicon e.g. [Si(CH3)2O]n See wikipedia silicone for examples of the different uses of silicones- and the silicon article for a picture of silicon.
A silicon chip is a structure created by people using machines. The structure consists of a base, made of silicon with a small amount of other elements added, so this part is a mixture. The chip also has wiring and transistors printed on it, thus making the entire chip a structure rather than a mixture or pure substance.
Nitrogen (N) is a chemical element.
NO!!! 'Silucon is an element in its own right, and found in the Periodic Table as 'Si' , immediately below 'Carbon'.