Question

The entire group of substances that makes up a sample

Answer 1

is called a mixture. A mixture is made up of two or more different substances that are physically combined, but not chemically bonded. Each component of the mixture retains its own properties and can be separated from the mixture by physical means, such as filtration, distillation or chromatography. Examples of mixtures include air (a mixture of gases), seawater (a mixture of water and salts) and soil (a mixture of organic and inorganic materials).