compare and contrast Physical and chemical properties for the element Manganese

Answer 1

Physical Properties can be observed without changing the identity of the element (or compound). Properties are color, smell, freezing point, boiling point, melting point, viscosity, density, and color. Another way to look at physical properties is to view them as observable using your five senses.

Chemical Properties are properties that change the composition of the element (or compound). Chemical properties are how the element reacts with other substances or how it changes from one substance to another. Examples are oxidation, isotopes, flammability, reactivity with water, and reactivity with acids.

For example: Calcium

Physical - silvery-white metallic solid, relatively soft, cubic in structure, can be shaped easily, melts at 851C, boils at 1482 C.

Chemical - deoxidizer in steel, six isotopes, when heated in air or in oxygen it ignites, reacts rapidly with cold water to form calcium hydroxide, highly reactive with acids