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КРОК / KROK
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To determine the end point of an acid-base titration the following indicators are used:
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In the process of systematic analysis there is a need to separate PbSO_4 from mixture of the 3rd analytical group cation sulphates. Which of the following suits most towards this end?
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Allopurinol is used to treat gout. What is the mechanism of action of this drug?
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In March, the children in a kindergarten were given a salad made from fresh cabbage stored in a cold cellar. Several hours later, many of these children developed signs of food poisoning. What microorganisms are the likely cause of poisoning in this case, considering the conditions in which they were reproducing?
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Some medicinal plants are poisonous. Select a poisonous plant from the list below:
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Calcium carbonate crystals are deposited as clusters on the inner protrusions of a cell wall. What are these formations called?
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Both scientific and folk medicine uses medicinal plant Glycyrrhiza glabra L. What part of the plant is harvested?
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A patient with a hypertensive crisis was administered magnesium sulfate, which resulted in a sharp drop of the patient's blood pressure. What drug can be used in this case to eliminate the side effects of magnesium sulfate?
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Research of reaction rate dependance from various factors allows to intensify technological processes. What factor textbfHAS NO effect on reaction rate constant?
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Potentiometry is one of the electrochemical methods of analysis. This method is based on measuring (determination) of:
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