Pure Substance vs. Mixture

Richard & Kyle

Pure Substance vs. Mixture

Pure Substance- Matter having a chemical composition and distance properties. There's two types for Pure substance. Element and Compound.

Element: Fundamental substance can't be separated into simpler substances by chemical methods.

Compound: Substance composed of two or more elements in fixed proportions can be separated into similar substances and chemical only by chemical methods.

Examples: Carbon, iron, water, sugar, salt, nitrogen gas, and oxygen gas. __________

Mixture: Matter of consisting of two or more pure substances that retain their individual identities and can be separated by physical methods. There's two types of mixtures which is Homogeneous and Heterogeneous.

Homogeneous: Mixture having a uniform composition and properties throughout (also called a solution.

Homogeneous examples: milk, kool-aid, blood, lotion, window cleaner, glue, etc.

Heterogeneous: Mixture not uniform in composition and properties throughout.

Heterogeneous examples: pizza, cereal and milk, rocks in the sand at the beach, banana splits, etc.

Sources: http://chemistry.about.com/od/chemistryterminology/a/Heterogeneous-Vs-Homogeneous.htm http://chemsite.lsrhs.net/Intro/Pure_vs_mixtures.html https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/introduction-to-chemistry-1/classification-of-matter-27/substances-and-mixtures-179-3707/