Методическая разработка по английскому языку для студентов факультета химии и химической технологии " Simple Chemistry" Алматы 2017
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мет. разработка по химии
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- Ex. 5 Put the questions to the bold-typed words 1. We
- Ex. 7 Read and translate the text Exothermic and Endothermic Reactions
| Ex. 4 Put in as or than
1. Organic reactions occur faster …..redox reactions. 2. Bronsted theory is as interesting …Lewis theory. 3. This concept is more important … any other concepts. 4. Nitric acid reacts with metals as easily…. Sulphuric acid. 5. These species lose electrons faster …those species. 6. This theory was more useful … your theory. 7. This equation is as balanced ….. that equation. Ex. 5 Put the questions to the bold-typed words 1. We often write redox reactions in this way. 2. Organic reactions occur at high temperature. 3. Yesterday we reduced these species. 4. Nucleophillic regions have an excess of electrons. 5. Another key concept in organic reactions is Lewis basicity. 6. Magnesium loses electrons. 7. This element changes its colour when it burns. Ex. 6 Translate the following sentences from English into Russian or Kazakh. 1. Redox is an abbreviation of reduction/oxidation reactions. 2. Oxidation proceeds faster than reduction. 3. Reduction involves a gain of electrons. 4. Oxidation involves a loss of electrons. 5. Reactions where something is “burnt» are the examples of redox reactions. 6. These half-reactions are balanced quicker than those reactions. 7. What element gains electrons? 8. Electrons are transferred between species. Ex. 7 Read and translate the text Exothermic and Endothermic Reactions The release of energy in chemical reactions occurs when the reactants have higher chemical energy than the products. The chemical energy in a substance is a type of potential energy which we store within the substance. This stored chemical potential energy is the heat content or enthalpy of the substance. The collection of substances that is involved in a chemical reaction is referred to as a system and anything else around it is called the surroundings. If the enthalpy decreases during a chemical reaction, a corresponding amount of energy releases to the surroundings. Conversely, if the enthalpy increases during a reaction, a corresponding amount of energy is absorbed from the surroundings. This is simply the Law of Conservation of Energy. Endothermic reactions increase their enthalpy by absorbing heat. Exothermic reactions decrease their enthalpy by releasing heat. Vocabulary release of energy выделение энергии a reactant реагент to store хранить heat content теплосодержание, энтальпия chemical energy химическая энергия enthalpy энтальпия stored сохраненная surroundings внешняя среда collection множество to decrease уменьшаться a corresponding amount соответствующее количество to release высвобождаться during во время to increase увеличиваться to absorb поглощать the Law of Conservation of Energy закон сохранения энергии endothermic reactions эндотермические реакции exothermic reactions экзотермические реакции by absorbing heat путем поглощения тепла by releasing heat путем выделения тепла anything else around что-либо еще вокруг жүктеу/скачать 422,31 Kb. Достарыңызбен бөлісу:
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