Physics (A-level) - CIE Notes
1 | P a g e h t t p s : / / w w w . c i e n o t e s . c o m / Physics (A-level) Circular motion (chap.7): One radian (rad) is defined as the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle The angular speed is …
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Lattice energy (Chapter 19 TB) - CIE Notes
www.cienotes.comTotal enthalpy change can also be written as: E.g. of a feasible reaction: E.g. of thermal decomposition of zinc carbonate: Reaction is spontaneous at 550 K, and does not occur at 298 K During exothermic reactions, the enthalpy change plays a …
Chemistry (A-level) - CIE Notes
www.cienotes.comBromothymol blue indicator changed from blue to yellow over the range 7.6 to 6.0 where the slope is steepest Due to the sharp change in pH, other indicators can be used which change within this region (e.g. phenolphthalein – pH range 8.2 to 10.0):
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www.cienotes.comOrganic Chemistry (A-level) Benzene: Organic hydrocarbons containing one or more benzene rings are called arenes. In general, compounds of benzene are known as aryl compounds or aromatic compounds; an example is chlorobenzene, which is one of the halogenoarenes. The simplest arene is benzene itself (C6H6)
Chemistry (A-level) - CIE Notes
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