HOT CAN! Developed for people on the go‚ Hot-Can is an innovative and convenient range of self heating tasty beverages that deliver hot drinks right when you need it. Hot-Can is non-toxic and non-flammable‚ and 100% recyclable. 1.How does Hot-Can work? Hot-Can has developed a special double-chambered aluminium can which contains the beverage in the outer chamber and holds water and calcium oxide (quick lime) separately in the inner chamber. When the seal at the bottom of the can is depressed and
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Intracellular 62% b. Interstitial 30% c Plasma 8% 5. Give an example of each of the following solutes: a. Ions/electrolyte: Sodium ion b. Colloids: Proteins c. Nonelectrolytes: Glucose 6. List the major extracellular and intracellular cations and anions a. Extracellular cations: Sodium anions: Chloride b. Intracellular cations: Potassium anions: Phosphates and Protein 7. Within a fluid compartment‚ the total number of positive
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ST ANDREW’S JUNIOR COLLEGE JC 2 Preliminary Examination CHEMISTRY 9647/03 Higher 2 13 September 2010 Paper 3 Free Response 2 hours Candidates answer on separate paper. Additional Materials: Answer paper‚ Graph Paper‚ Data Booklet READ THESE INSTRUCTIONS FIRST Write your name and civics group on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a soft pencil for any diagrams‚ graphs or rough working. Do not use staples‚
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AustStab Technical Note No.1 May 2002 Lime stabilisation practice 1 Introduction Lime stabilisation of materials is one of the oldest forms of stabilisation and sometimes the least understood. The stabilisation of clay subgrades using quicklime has a long and successful history in many urban and rural regions of Australia‚ and is cost effective and a necessary requirement for Municipalities and State Road Authorities seeking long-life roads to minimise future maintenance costs.
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components found in the other energy drinks. The exceptions‚ however‚ were that SugarFree Rockstar‚ like the name suggests‚ contains no traces of sugar‚ unlike Monster Energy. Also‚ unlike other energy drinks‚ Monster Energy contained detectable traces of sodium chloride. The components of gingerale were also quite similar to the components found in other beverages. However‚ it contained no protein or lipids‚ unlike chocolate milk‚ and had a large amount of simple sugars‚ unlike Vitamin Water and Tea
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Ca2+ ions from the water. When hard water is heated‚ CaCO3 precipitates out and then clogs pipes and industrial boilers. This leads to malfunction or damage and is expensive to remove. [1] The reaction that takes place from the insoluble calcium carbonate: CaCO3(s) + CO2(g) + H2O(l) → Ca(HCO3)2(aq) This reaction is reversible on heating. This removes the temporary hardness. Temporary hardness is caused by the presence of dissolved calcium and magnesium compounds. The reactions that take place
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HKDSE Chemistry – A Modern View 1 (SAMPLE) Suggested Answers (Coursebook) |Chapter 1 The fundamentals of chemistry | |Class Practice |1 | |Chapter Exercises |3 | |Chapter 2 The atmosphere
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a good fit. Builder’s putty also mainly contains chalk as a filler in linseed oil. Chalk may be used for its properties as a base. In agriculture‚ chalk is used for raising pH in soils with high acidity. The most common forms are CaCO3 (calcium carbonate) and CaO (calcium oxide). Small doses of chalk can also be used as an antacid. Additionally‚ the small particles of chalk make it a substance ideal for cleaning and polishing. For example‚ toothpaste commonly contains small amounts of chalk‚ which
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such as produced on evaporation‚ but rather in the form of ions‚ the basic elements and the acid radicals being separated‚ nevertheless it is customary and convenient to consider them as combined into the form of salts. Among these‚ common salt‚ or sodium chloride‚ makes up the bulk of the material‚ being nearly 78 percent of the total mass of salt‚ or over 27 mille (thousand) of the salinity (which is taken as 35 in round numbers). In the accompanying table the composition of sea water salts is given
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mineral calcite. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite plates shed belonging to the division of haptophytes. They function as a special calcium carbonate. Eggshell is another object that has the presence of calcium carbonate. It is used by animals to store their young in it and protect it. Some birds like the chicken force the eggs out while some wait for some time until it is out. The chicken egg is usually made as human food
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