chemical reaction by their symbols or formulas. Reversible reaction- a chemical reaction in which the products re-form the original Synthesis reaction- a composition‚ reaction‚ 2 or more substances combine to form a new compound Electrolysis- the decomposition of a substance by an electric current Double displacement reactions- the ions of 2 compounds exchange places in an aqueous solution to form 2 compounds Combustion reaction- a substance combines with oxygen‚ releasing a large amount of energy
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oil – for skin inflammation to left leg (for a week) Past History: Smokes ½ a pack of cigarettes per day (since she was a teenager) Weight: 70 kg Height: 150 cm DOCTOR’S ORDER: Medications: Ancef 750 mg IV q12h Elavil 50 mg po qhs Calcium Carbonate 1000 mg po once daily Vit D 1000 units po once daily Actonel 35 mg/week po Vagifem 10mcg tablet into the vagina qhs Imitrex 75 mg po q4h prn for a maximum of 2 doses daily Metformin 750 mg po TID with meals Buffered Aspirin 650 mg po q6h
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gas that burns with a pop sound when a flaming wooden splint is placed near it.liqiud y is most likely a compound that has the formula a.c2h5oh b.hcooh c.h3cooch3 d.c6h14 3.a compound p has the following characteristics: -reacts with sodium carbonate to release a gas that clouds lime water -reacts with compound q to form a fragrant liquid a.p-sulphuric acid q-ethyl ethanoate b.p-ethanoic acid q-ethyl ethanoate c. p-ethanoic acid q-ethanol d. p-ethanol q- ethanoic acid 4.element-proton
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and detrimentally altered. In a process called ocean acidification‚ chemical reactions between absorbed carbon dioxide and H2O occur that reduce the pH of seawater‚ as well as decrease carbonate ion concentration and saturation states of calcium carbonate minerals (“Ocean Acidification‚” PMEL). This calcium carbonate is necessary for the formation of skeletons and shells of many marine organisms. Therefore‚ acidification is damaging‚ and likely killing‚ large amounts of sea life (Horsey‚ 2012). The
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From the results that have been gathered‚ it tells a variety of different things. Each temperature attempt was done three times to be accurate. First of all‚ the hypothesis (the higher the temperature the faster the reaction will occur) has been proven correct and it proves the theory right. From the results‚ we can see this‚ as the iced water (10 degrees) had the slowest rate of reaction at 1.10 minutes. Then the room temperature water (19 degrees) was tested and had a slightly better rate of reaction
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Kassandra Coan Why put lime in a pond? Honors Activity 5.4 Lime is a commercial name for calcium oxide (CaO). When carbon dioxide (Co2) is removed from limestone‚ coral‚ seashells‚ or chalk they become lime. This product is easily accessible‚ because an abundance of limestone in found in the crust of the earth‚ and the Co2 is removed simply by heating the limestone. See formula below: 500-600
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Extractive Metallurgy Minerals are naturally occurring chemical substances in the earth’s crust obtainable by mining. Out of many minerals in which a metal may be found‚ only a few are viable to be used as sources of that metal. Such minerals are known as ores. Examples: Galena‚ PbS‚ etc. It is usually contaminated with earthly or undesired materials known as gangue. The extraction and isolation of metals from ores involve the following major steps: • Concentration of the ore‚ • Isolation of the
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the solubility of carbon dioxide in water. In this experiment‚ the solubility of carbon dioxide in the water of selected temperatures—0°C‚ 20°C‚ 40°C and 60°C—will be tested by using the carbon dioxide gas prepared from the reaction between calcium carbonate and hydrochloric acid and dissolving it in de-ionised water within a gas syringe. In regards to the temperature‚ the gas will not be heated directly but the temperature will be manipulated according to the temperature of the solvent‚ which
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A. MATTER * Nature of matter. * Describe the states of matter and explain their conversion in terms of the kinetic particle theory. * Describe and explain diffusion. * Describe dependence of rate of diffusion on molecular mass‚ qualitatively. * Experimental techniques Measurement. * Name appropriate apparatus for the measurement of time‚ temperature‚ mass and volume‚ including burettes‚ pipettes and measuring cylinders. Criteria of purity. * Identify substances
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durable and long lasting chalk. Until they found out that seashells is made up of calcium carbonate that can also be found in chalk. The term seashells usually refer to the exoskeleton of invertebrate animals. Most seashells are commonly found at the beaches but in a variety of habitats it is also possible to find shells from freshwater animals. But what was known in these animals they are made up of calcium carbonate. It will now be easy for the less fortunate country or people
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