IGCSE

www.studyguide.pk IGCSE Complete Chemistry Notes

Pure substances and impurities A pure substance is a substance that has no particles of any other substance mixed with it. An unwanted substance, mixed with a wanted substance, is called an impurity To check if a substance is pure, you have to check its melting and boiling points.

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PHYSICS IGCSE 2012 EXAM REVISION NOTES

2.1 a. States of matter b. Molecular model c. Evaporation d. Pressure changes 2.2 Thermal properties a. Thermal expansion of solids, liquids and gases b. Measurement of temperature c. Thermal capactiy d. Melting and boiling 2.3 Transfer of thermal energy a. Conduction b. Convection c. Radiation d. Consequences of energy transfer 3.

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Section 9: Hazardous Materials - CDL Study

Flammable Gases Non-Flammable Gases Poisonous/Toxic Gases Propane Helium Fluorine, Compressed 3 --- Flammable Liquids Gasoline 4 4.1 4.2 4.3 Flammable Solids Spontaneously Combustible Spontaneously Combustible When Wet Ammonium Picrate, Wetted White Phosphorus Sodium 5 5.1 5.2 Oxidizers Organic Peroxides Ammonium Nitrate Methyl Ethyl …

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Chemical Engineering Design - Elsevier.com

Butterworth-Heinemann is an imprint of Elsevier The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, UK 225 Wyman Street, Waltham, MA 02451, USA

Average Mark: 20.9 /30 42.2 /70 19.2 /30 - JABchem

C Solids have lower entropy/disorder than liquids or gases. (sulphur m.pt. =115oC) D Liquid phosphorus (m.pt.=44oC) has higher entropy (disorder) than solid sulphur 11 B 70 Rate = k [A] [B]2 Reactant A is first order and Reactant B is second order

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Cambridge International Examinations Cambridge ...

A It is accelerating because its speed is changing. ... 19 Which line in the table shows the relative expansion of the three states of matter from the most expansion to the least expansion? ... gases gases > > > > liquids gases liquids solids > > > > gases liquids solids liquids 20 The diagram shows a liquid-in-glass thermometer. –10 0 10 20 ...

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Phases of Matter – Multiple Choice Quiz - Exploring Nature

models of solids, liquids, and gases to show that adding or removing thermal energy increases or decreases kinetic energy of the particles until a change of state occurs. Examples of models could include drawing and diagrams. Examples of particles could include molecules or …

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