Chemistry year 11 Syllabus Summary

Module 1: The chemical Earth1. The living and non-living comp nonp beilnts of the Earth sway mixturesIdentify the leaving between elements, complicateds and mixtures in terms of particle guess? consistent means of uniform written report throughout, for slip light water, sugar, aluminium, gas pedal or whisky. Heterogeneous means having non-uniform composition where we can fleck small pieces of the material which atomic number 18 assorted from other pieces, for slip strawberry jam, wood, or water with glass in it. ?An impure nerve center is one inwardness contaminated with small amounts of one or more(prenominal)(prenominal) other substances. An impure substance is thence a mixture. ?An element is a pure substance which cannot be decomposed into simpler substances. Some common elements are aluminium. Carbon (diamond) and oxygen. ?A compound is a pure substance which can be decomposed into simpler substances, for example into elements. Some common compounds are tabl e flavour ( atomic number 11 chloride), sodium carbonate (washing soda). ?In solids, particles are packed most together. at that place are strong forces holding the particles to one another which hit solids to pay back expressed shapes and to be relatively hard. In solids particles quake middling above their rest positions. ?In liquids, particles move around a great deal more freely. Particles in liquids possess more deed ? more kinetic energy ? and the forces between neighbouring particles are relatively weaker than in solids.

Therefore liquids do not hand over definite shapes provided instead take the shape of the container they are fixed in. Solids have greater dens! ity than liquids because the particles are packed more closely together in solids. ?In gases, the particles are much moreover apart than in solids or liquids, and they are in in truth rapid random motion. The particles are so off the vanquish track(predicate) apart and moving so rapidly that there are no significant forces between them. Because the particles are in such rapid random motion, gases quickly... If you want to get a long of the mark essay, order it on our website: BestEssayCheap.com

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