One way to determine if a compound is pure is to perform a melting point test. A pure compound will have a sharp melting point, while impurities will cause the melting point to be lowered and broadened. You can also use analytical techniques such as chromatography or spectroscopy to analyze the compound's composition and identify any impurities.
Chat with our AI personalities
Pure water is a compound. It is composed of two elements, hydrogen and oxygen, chemically bonded together in a fixed ratio (H2O).
Toluene is a pure substance because it is a single compound with a uniform chemical composition throughout.
Pure gold is an element, not a compound. It is composed of only one type of atom, which is gold.
Copper II nitrate is a compound, not a pure substance. It is composed of copper, nitrogen, and oxygen atoms bonded together in specific ratios, making it a chemical compound rather than a pure element.
Ethanol is a pure compound as it is a single chemical substance consisting of carbon, hydrogen, and oxygen atoms. Steel is not a pure compound as it is an alloy composed of multiple elements, primarily iron and carbon. Tap water is not a pure compound as it consists of various dissolved substances such as minerals and gases. Petrol is not a pure compound as it is a mixture of hydrocarbons.