substance with the symbol Al in the periodic table. Mixtures can either be a homogeneous mixture or a heterogeneous mixture. A homogenous mixture is a mixture that is thoroughly combined (example: coffee). Homogenous mixtures can be separated through chromatography, and distillation. Chromatography the separation of a mixture by passing it in solution or suspension or as a vapor through a medium in which the components move at different rates. The other method is distillation in which the solution is separated through evaporation and condensation . All substances have properties that we use to identify them with. A basic property that we can associate matter with is by its physical property. Physical property are properties that matter has that will not alter the chemical nature of the matter. Any changes in physical property can be reversible Examples of physical properties are color, smell, melting point, freezing point, density, solubility, polarity and much more. Another property that we use to identify matter is chemical property.
Chemical property is when during a reaction the chemical composition has changed. Chemical properties cannot be observed by viewing or touching the sample of the material. Example of chemical properties are toxicity, which is when you determine how much of that substance can ruin plants, animals, organs or other organisms. Another example of a chemical property is heat of combustion, which means how much energy is released when the substance is burned with oxygen . More examples of chemical properties are flammability, reactivity with other chemicals , chemical stability and oxidation
states. Density is a measure of the amount of matter present in a given volume of substance.Density describes how closely packed matter is . Density depends on both the mass and the volume of an object. The formula of calculating a density of an object is
D=M/V