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The difference between hard and soft water
Collect some hard water from a stream(or make some as defined in the next experiment). Also secure some soft water like as rain water or distilled water. Make some soap solution by dissolving soap shavings or powdered soap in a little warm water. Place equivalent amounts of hard and soft water in every of two bottles. Add soap solution to the soft water with a dropper, some drops at a time. Shake the bottle well after every addition. Count the number of drops of soap solution required to produce suds about 1 cm thick on the top.
Define hydroxyl groups As glycerol has three hydroxyl groups , three molecules of fatty acids may get attached with it at the maximum. When one molecule of fatty
INTRODUCTION : By doing this exercise, you will learn how to deal with emergency situations arising out of laboratory accidents. You are aware that a tense situation arises once a
Explain parasympathetic Nerves System Another system that runs parallel to the sympathetic system is termed as the parasympathetic system. This system has an effect just opposi
Important physico-chemical properties of pantothenic acid are as follows: a) Pantothenic acid is a pale yellow oily liquid that can only be crystallized as its sodium, potassi
Diagnosis: 1. Diagnosis of the casualty involves considering the history, symptoms and signs. 2. History is the information as to how the accident or illness occurred.
How Temperature of the Earth's Layers is changed? How does the temperature of the Earth's interior change as one goes deeper within the Earth? As one might expect, the farther
j shaped plant curve
why there is 28 day in february month
Explain Internal Defence Mechanism Body's internal defence mechanism is carried out by white blood corpuscles (WBCs), macrophages, inflammatory reactions, fever, interferons, c
why we use mercury in the measurement of conductance using wheatstone bridge principle
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