What is Matter? by: Kaylee Risinger

Matter can be either a pure substance or a mixture.

Pure substances are defined as substances that are made of only one type of atom or only one type of molecule. Pure substances can either be elements or compounds

Compounds are a thing that is composed of two or more separate elements.

Examples of compounds include water,carbon dioxide, marble, copper, sulphate and hydrogen chloride.

Pure substances can also be elements

An element is a substance consisting of atoms which all have the same number of protons.

Examples of elements include oxygen, hydrogen, sodium, chlorine, and iron.

Matter can also be a mixture, mixtures can either be homogeneous or heterogeneous.

Homogeneous mixtures are composed of parts or elements that are all of the same kind. Solutions are a homogeneous mixtures.

Examples of a homogeneous mixture are water and air.

Solutions are the process by which a gas, liquid, or solid is dispersed homogeneously in a gas, liquid, or solid without chemical change.

Examples of solutions are salt water, rubbing alcohol, and sugar dissolved in water.

Heterogeneous mixtures are a combination of two or more pure substances in which the original substances retain their chemical properties. Suspension and Colloid are heterogeneous mixtures.

Examples of a heterogeneous mixture are salt, pepper and sand.

Suspension is a heterogeneous mixture containing solid particles that are sufficiently large for sedimentation.

Examples of Suspension include sand in water, and oil in water.

Colloid is a type of homogeneous mixture in which the dispersed particles do not settle out.

Examples of Colloids are butter, milk, smoke, fog, ink and paint.

Credits:

Created with images by Hans - "coins cent specie" • juliatweedie - "Water" • Couleur - "wave sea water" • SoraZG - "Salt-(sea)_B130623" • congerdesign - "milk glass frisch"

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