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Chemistry

Separation Techniques Practicals in Chemistry

Categories
Chemistry

Mixtures and Separation Techniques

A mixture is made from different substances that are not chemically joined.For example powdered iron and powdered sulphur mixed together […]

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Chemistry

Oxidation numbers

OXIDATION NUMBERS It is often useful to follow chemical reactions by looking at changes in the oxidation numbers of the […]

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Chemistry

Compounds: Naming ionic and molecular compounds

In chemistry, a compound is a substance that results from a combination of two or more different chemical element s, […]

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Chemistry

The relative atomic masses of elements, Isotopes

Isotopes Definition: Isotopes are atoms with the same number of protons, but differing numbers of neutrons. Isotopes are different forms […]

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Chemistry

Particulate nature of matter: Orbitals, Pauli Exclusion Principle, Hund’s rule, spdf configuration

Atoms are the basic units of matter and the defining structure of elements. Atoms are made up of three particles: […]

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Chemistry

Molecules and Atomicity

MOLECULES AND ATOMICITY A molecule is the smallest particle in a chemical element or compound that has the chemical properties […]

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Chemistry

Scientific Elements and atomic structure

Element Definition: A chemical element is a substance that cannot be broken down by chemical means. Elements are defined by […]

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Chemistry

Changes in state of matter

A material will change from one state or phase to another at specific combinations of temperature and surrounding pressure. Typically, […]

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Chemistry

Particulate nature of matter: Solid, Liquid, Gas and Plasma

In our daily life, we come across many objects, the knowledge about which can be gained by one or more […]