A homogeneous mixture is one that has a uniform composition and the same properties throughout the mixture. This is different than a homogeneous substance, which means that there is only one kind of substance present. A ... More » Science Chemistry

Common examples of homogeneous mixtures include sugar and salt solutions, vinegar, tap water, metal alloys, perfumes, beverages and air. Homogeneous mixtures are commonly referred to as solutions, which can occur in diff... More » Science Chemistry

A mixture of water and starch is colloidal because it forms a shell of firmly bound molecules of water that stops the starch particles from aggregating with the molecules of water when they collide. However, when heated,... More » Science Chemistry
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The mixture of baking soda and vinegar erupts because the baking soda and vinegar react to form carbon dioxide gas inside of the mixture. The carbon dioxide rises to the surface of the baking soda and vinegar mixture in ... More » Science Chemistry

Physical properties are those that can be seen or used without changing their physical properties or identities, while chemical properties are those that change in structure and composition. Physical properties share the... More » Science Chemistry

Chemistry is the scientific study of the composition, properties and interactions of organic and inorganic matter. Chemistry is commonly used in fields of science and medicine, according to More » Science Chemistry

Chemistry is referred to as the central science because it deals with the composition and properties of all types of matter, which are all composed of chemical elements. Chemical knowledge of matter is essential to under... More » Science Chemistry