What is chemical Substance ? Please Explain with Example!
A pure substance or chemical substance is a material that has constant composition, is homogeneous and has consistent properties throughout the sample. Examples of pure substances: tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Tin, sulfur and diamond are examples of pure substances which are chemical elements. All elements are pure substances. Water, sugar, salt and baking soda are pure substances which are chemical compounds. Chemical compounds also are pure substances.