Salt water or sugar water can appear to be pure substances because the dissolved solutes may be invisible. In gunpowder (black powder), the compounds potassium nitrate, sulfur, and carbon are all well mixed but represent a mixture, not a pure substance. Petroleum (oil) is actually a mixture of sveral difference complex hydrocarbons formed by the same process, and these can be separated by fractional distillation.
Some examples of pure substances used in cooking include sugar, salt, baking soda, and olive oil. These substances are all made up of just one type of molecule and do not contain any impurities.
Gold, Silver, Oxygen, and Hydrogen are not compounds because they are all elements.Sources- Science book. ^_^P.S- This better have helped!
Some examples of things that do not change when they are warmed include abstract concepts like emotions or thoughts, as well as certain physical properties of pure substances such as density or mass.
Examples of substances hazardous to the environment include pesticides, heavy metals like lead and mercury, oil and petroleum products, and industrial chemicals like PCBs and dioxins. These substances can pollute air, water, and soil, harm wildlife and aquatic ecosystems, and pose risks to human health. Proper handling and disposal of these substances is crucial to minimize their impact on the environment.
No, the difference between a pure substance and a mixture is not always easy to observe. While pure substances have definite chemical compositions and properties, mixtures consist of two or more substances physically combined. Some mixtures can be challenging to distinguish from pure substances based on visual observations alone.
Some examples of pure substances include elements like gold, oxygen, and carbon, as well as compounds like water (H2O) and salt (NaCl). These substances have a uniform and consistent composition throughout.
Examples of pure substances include elements such as gold, oxygen, and carbon, as well as compounds like water and table salt. These substances have a uniform and definite composition, with no other substances present.
Pure substance can be identified as either elements or compounds. Some examples of pure substance that are elements are sulfur and tin. Pure substances that are compounds are sugar and salt.
Some examples of pure substances used in cooking include sugar, salt, baking soda, and olive oil. These substances are all made up of just one type of molecule and do not contain any impurities.
Some examples of pure substances include elements like gold, oxygen, and carbon as well as compounds like water (H2O), sodium chloride (NaCl), and glucose (C6H12O6). Pure substances are materials that are made up of a single type of atom or molecule.
ok so some examples of pure substances are gold sugar table salt distilled water(pure) iron filings
A pure substance is a homogeneous chemical substance which means its composition is constant and its properties are consistent too. Some examples of this kind of substances are water, baking soda and sucrose.
Some examples of things that do not change when they are warmed include abstract concepts like emotions or thoughts, as well as certain physical properties of pure substances such as density or mass.
Gold, Silver, Oxygen, and Hydrogen are not compounds because they are all elements.Sources- Science book. ^_^P.S- This better have helped!
marijuana.!
Pure substances are made up of a single element, or a single compound. Table salt is a pure substance because it is made up of only the compound NaCl (sodium chloride). Diamond is a pure substance, it is made up of the element carbon. Air is not a pure substance, it is a mixture of several gaseous elements and compounds (nitrogen, oxygen, carbon dioxide..) Distilled water is a pure substance made up of a single compound H2O.
salt