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This striking demonstration can show students how atmospheric pressure - and pressure differences can cause a 330ml drinks can to be crushed. 
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This edition includes notes on problems with summer heat and stored chemicals,  developing issues with latex allergy, a new version of the collapsing can experiment, and a tip on preparing crushed ice.. more
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Small pieces of sodium and potassium metal are crushed together in a test tube under an inert liquid until the alloy – a liquid at room temperature – is observed to form. There are several possible al.. more
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Crushing an empty drinks can with atmospheric pressure
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Make-it guide: standard test source for checking a GM counting system
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This edition includes notes on the Special Waste regulations (1996). a defacto ban on α-toluidine, the wonders of octagonal-shaped benches in the lab, using Fehling's solution, and using Sordaria for .. more
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This document explains how to carry out a circus of qualitative food tests for:carbohydratesstarch – iodine testreducing sugars - Benedict’s testnon-reducing sugars – hydrolysis then Benedict’s test p.. more
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When the iron/sulfur mixture is heated, the sulfur melts and reacts with the iron exothermically to form iron(II) sulfide. This is an important demonstration that shows that the properties of a compou.. more
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Simple instructions to teach students how to use a burette correctly.
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This important procedure illustrates the conversion of saturated hydrocarbons, which are used for fuels, into the more chemically useful unsaturated hydrocarbons, used in making plastics. The alkenes .. more
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