Download Chemistry at a glance by Roger Owen, Sue King PDF

By Roger Owen, Sue King

This publication is aimed toward scholars taking the GCSE Double technological know-how award and at lecturers who will locate it precious as a convenient reference and planner. the 1st 3 sections of the e-book contain a precis of 'Materials and their houses' for key level three of the.


This e-book goals to hide the standards of the most exam forums for GCSE Double technological know-how, GCSE unmarried technological know-how and the center content material of GCSE Chemistry. the place appropriate, Key level three fabric is Read more...

Show description

Read or Download Chemistry at a glance PDF

Similar general & reference books

Technische Katalyse

With out catalysts business construction, study and environmental expertise might all be unthinkable. even if eighty% of all large-scale commercial tactics are catalytic, many scientists and engineers restrict themselves to continuing on empirical strains. they regularly don't own the fundamental wisdom for a scientific improvement and alertness of catalysts.

Industrial Biotechnology: Sustainable Growth and Economic Success

Describing all issues of white biotechnology admitted to the seventh european body Programme and new commercial creation strategies aiming in the direction of the Kyoto targets, this entire evaluation covers the expertise, functions, monetary power and implications for society. Directed at readers with a common curiosity in a particular know-how, this can be both appropriate as an introductory instruction manual to a variety of industries, together with chemical compounds, biotechnology and prescribed drugs, meals and feed, paper and pulp, own care, power and agriculture.

Characterization of Flow, Particles and Interfaces

Multi-scale research and simulation of chemical processing and reactions have acquired unheard of awareness lately; even if, dimension expertise occupied with multi-scale buildings, relatively on meso-scale phenomena, has no longer been sufficiently addressed.  This quantity of Advances in Chemical Engineering specializes in the "Characterization of circulation, debris and Interfaces" to alert the chemical engineering neighborhood to this not easy factor proposing six meso-scale dimension applied sciences.

The Story of Early Chemistry

It is a generation of the unique 1924 version.

Additional resources for Chemistry at a glance

Example text

6. How many electrons are there in the outer energy levels of: (a) rubidium (b) strontium (c) bromine (d) iodine (e) krypton (f) barium (g) xenon (h) caesium? 28 IONS AND BONDING Outer electrons In order to react atoms must form chemical bonds to other atoms. Electrons in the outer energy level (outer shell) are used to form bonds. 1 Group 1 a reactive metal Fluorine • Fluorine and sodium form compounds with other elements. • Atoms of fluorine and sodium are able to form chemical bonds to other atoms.

M+ – M+ M+ – M+ M+ M+– M+ – – M+ – – M+ + – M+ – – M+ – M+– Metal atoms/ions are held in a regular pattern but can slide over each other, giving metals flexibility. bulb lights up – ‘Free’ outer electrons can carry current. Outer electrons move between atoms/ions and form metallic bonds. conductor + – + – + +– +– –+– + – + – + +– –+ + – + – + – +– – - electrons move and carry charge Ionic compounds conduct electricity when melted or dissolved in water because the ions are free to move. • Copper chloride is an ionic compound containing Cu2+ and Cl– ions.

Copper chloride will conduct electricity if dissolved in water because the ions are free to move. • Two carbon rods called electrodes are dipped into the solution to complete the circuit. • The electric current causes – + – + chemical reactions to occur at the The ions are electrodes. • The electric discharged at current has split the electrodes copper chloride into copper and electrodes chlorine. • This process is solution fills space called copper between electrodes and electrolysis, and chloride completes the circuit the copper solution chloride is called an electrolyte.

Download PDF sample

Rated 4.93 of 5 – based on 30 votes