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.
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A pure substance or chemical substance is a material that is homogeneous and has constant properties throughout the sample. Water and pure hydrogen are pure substances as well as pure honey (with nothing added).
Examples of Pure Substances are;
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Elements : Gold , Aluminum, Silver, Boron, Carbon , Nitrogen, Helium
Substances : Carbon monoxide , Table salt (sodium chloride ) , Water
please explain how has science have impact our every day lives give five examples
Everyday life has a myriad of examples of science. Computer science is important, as well as medical science. Another is genetics that are assisting the planet in world hunger.
What are three examples of science that occur or exist in everyday life and why
Two examples of heat conduction that are observable in everyday life:- heat conduction through walls- heat conduction through clothing- heat conduction from many home appliances
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