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  1. Apr 30, 2022 · Physical properties can be observed without the substance identity being altered., therefore the physical change is reversible. Some examples of physical properties include colour, hardness ...

  2. The characteristics that distinguish one substance from another are called properties. A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

  3. A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.

  4. › wiki › HomeopathyHomeopathy - Wikipedia

    Homeopathy or homoeopathy is a pseudoscientific system of alternative medicine.It was conceived in 1796 by the German physician Samuel Hahnemann.Its practitioners, called homeopaths, believe that a substance that causes symptoms of a disease in healthy people can cure similar symptoms in sick people; this doctrine is called similia similibus curentur, or "like cures like".

  5. Jul 20, 2021 · The major properties found in most metalloid elements can be divided into physical properties and chemical properties. Physical Properties The physical properties of metalloid elements include:

  6. › wiki › IsomerIsomer - Wikipedia

    In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Isomers do not necessarily share similar chemical or physical properties.

  7. Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science (physics, chemistry, astronomy, geoscience, biology).

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