Understanding Chemistry
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Chemguide: core chemistry analysis menu
Core Chemistry 14 - 16. Analysis Menu. Collecting and testing gases . . . How to collect and test the following gases: hydrogen, oxygen, carbon dioxide, ammonia and chlorine.
Chemguide: Support for CIE A level Chemistry
28.4: Stereoisomerism in transition element complexes. Learning outcomes 28.4.1 and 28.4.2. ... This diagram for the geometric isomers of Pt(NH 3) 2 Cl 2 comes from the Chemguide page you have already looked at. Chlorine is fractionally more electronegative than nitrogen (Cl 3.16; N 3.04).
Writing ionic equations for redox reactions
Explains how you construct electron-half-equations for redox reactions and combine them to give the ionic equation for the reaction.
electronic structures of atoms
The outer electron governs their properties and that electron is in the same sort of orbital in both of the elements. ... Remember that chromium and copper have electronic structures which break the pattern in the first …
an introduction to alcohols
This page explains what alcohols are, and what the difference is between primary, secondary and tertiary alcohols. It looks in some detail at their simple physical properties such as solubility and boiling points.
Physical Properties of Copper(II) Soap Complexes in Binary …
Copper(II) soap complexes were synthesized with the N-donar ligands viz., benzothiazole and phenyl thiourea derived from p-methoxy aniline. These complexes were characterized by elemental analysis, molecular weight, melting point, IR, NMR and ESR spectral studies. In the present study, the solute-solvent interaction was investigated by density, molar …
the electrochemical series
Describes the origin of the electrochemical series, and explains how it relates to the ability of the various substances in it to act as oxidising or reducing agents.
substitution in complex ions
Another copper-based chelate comes from the reaction with EDTA. This also has a high stability constant - log K is 18.8. However many examples you take, you always find that a chelate (a complex ion involving multidentate ligands) is more stable than ions with only unidentate ligands. This is known as the chelate effect.
iron
Iron(III) ions and carbonate ions. The hexaaquairon(III) ion is sufficiently acidic to react with the weakly basic carbonate ion. If you add sodium carbonate solution to a solution of hexaaquairon(III) ions, you get exactly the same precipitate as if you added sodium hydroxide solution or ammonia solution.
the period 3 chlorides
Describes the relationship between the physical properties of the chlorides of the period 3 elements (from sodium to sulphur) and their structures ... Disulphur dichloride reacts slowly with water to produce a complex mixture of things including hydrochloric acid, sulphur, hydrogen sulphide and various sulphur-containing acids and anions ...
Copper
Element Copper (Cu), Group 11, Atomic Number 29, d-block, Mass 63.546. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
complex ions
Explains why many complex ions of transition metals are coloured, whereas those of other metals are not. THE COLOURS OF COMPLEX METAL IONS. ... Why is copper(II) sulphate solution blue? If white light (ordinary sunlight, for example) passes through copper(II) sulphate solution, some wavelengths in the light are absorbed by the solution. ...
Copper (Cu)
Copper is the 29th element in the periodic table and has a symbol of Cu and atomic number of 29. It has an atomic weight of 63.546 and a mass number of 63. Copper has twenty-nine protons and thirty-four neutrons in its nucleus, and twenty-nine electrons in …
Atomic and physical properties of Periodic Table Group 7
This page explores the trends in some atomic and physical properties of the Group 7 elements (the halogens) - fluorine, chlorine, bromine and iodine. You will find separate sections below covering the trends in atomic radius, electronegativity, electron affinity, melting and boiling points, and solubility.
Copper, Physical and Chemical Properties
Physical Properties. The most important property of copper is its high electrical conductivity; among all metals, only silver is the better conductor. Both electrical …
Chemistry of beryllium untypical of Group 2
Physical properties. Beryllium chloride, BeCl 2, melts at 405°C and boils at 520°C. That compares with 714°C and 1412°C for magnesium chloride. ... Beryllium forms 4-coordinated complex ions. Some simple background. Although beryllium doesn't normally form simple ions, Be 2+, ...
deciding bond type from physical properties
The page originally had a brief kinetic theory description of solids, liquids and gases. That has now been transferred to a separate introduction to kinetic theory page in the physical chemistry section of Chemguide. Deducing the type of bonding from physical properties. Melting and boiling points. The best place to start is usually the ...
substitution in complex ions
This page describes some common ligand exchange (substitution) reactions involving complex metal ions. It assumes that you are familiar with basic ideas about complex ions.
The Contact Process for the manufacture of sulphuric acid
This page describes the Contact Process for the manufacture of sulphuric acid, and then goes on to explain the reasons for the conditions used in the process.
Chemistry of Copper
Explore the chemistry of copper, its electron configuration, and metallic bonding within its periodic family alongside silver and gold.
complex ions
This page describes the shapes of some common complex metal ions. It goes on to look at some simple examples of stereoisomerism (geometric and optical) in complex ions.
chemguide: CIE A level chemistry support: Learning outcome 2.3.1
Support for CIE A level Chemistry. Learning outcome 2.3.1. Formulae. This statement deals with writing formulae for ionic compounds. Before you go on, you should find and read the statement in your copy of the syllabus.
Photoactive Copper Complexes: Properties and …
The first one focuses on an exhaustive and comprehensive overview of the structural, photophysical and electrochemical properties of mononuclear copper (I) complexes, typical examples highlighting the …
WebElements Periodic Table » Copper » the essentials
Copper: physical properties Density of solid: 8920 kg m -3 Molar volume: 7.11 cm 3 Thermal conductivity: 400 W m ‑1 K ‑1
orders of reaction and mechanisms
This page looks at the relationship between orders of reaction and mechanisms in some simple cases. It explores what a mechanism is, and the idea of a rate determining step.
Copper: introduction to the chemical element
Copper is a relatively soft, reddish metal that conducts heat and electricity well. It's roughly the 25th most abundant chemical element in Earth's crust and is found …
WebElements Periodic Table » Copper » physical properties
This WebElements periodic table page contains physical properties for the element copper.
Copper (Cu)
Copper is the 29th element in the periodic table and has a symbol of Cu and atomic number of 29. It has an atomic weight of 63.546 and a mass number of 63. Copper has …
Copper
Chemical, physical and material properties and data of the chemical element Copper.
a simple view of atomic structure
The behaviour of protons, neutrons and electrons in electric fields. What happens if a beam of each of these particles is passed between two electrically charged plates - one positive and one negative?
ionic (electrovalent) bonding
Ionic bonding in sodium chloride. Sodium (2,8,1) has 1 electron more than a stable noble gas structure (2,8). If it gave away that electron it would become more stable.
Understanding Chemistry
Includes trends in atomic and physical properties, the redox properties of the halogens and their ions, the acidity of the hydrogen halides, and the tests for the halide ions. Some essential complex ion chemistry . . . An introduction to the complex ions formed by transition and other metals.