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INTRODUCTION : In this unit, we introduce you to the fundamental of personal safety code in a laboratory. If you do not have safe laboratory practice, your life and those of your lab inmates could be in danger. A good personal safety code could lessen the occurrence or the consequences of accidents. Besides the personal safety code, we shall discuss the procedure for checking in, shutting down and lifting.
How to prepare hydrogen Hydrogen can be prepared from a dilute acid, like as hydrochloric or sulphuric, when it is chemically reacted with a metal like as zinc. The acid may be
How to make a devil diver (Cartesian diver) Find a tall glass jar with a quite wide mouth. Wrap a few turns of copper wire about the thin part of the rubber bulb from a medicin
Miscellaneous Dangerous Substances : This was introduced in the United Kingdom to identify other hazardous substances and consists of a black exclamation mark on a white backgroun
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Nutrient groups and their functions: We should know that our body is made up of different chemical substances which are related to the food we take. Scientists have determine
Explain the Small Intestine The small intestine is continuous with the stomach at the pyloric sphincter and leads into the large intestine at the ileocdic valve. It is about 2
prove work is a path function
Controlling Air Pollution: Now let us see, how air pollution can be controlled. i) Photochemical smog-eliminating this would require large scale changes in life style
Define Hyposecretion of Insulin You may already be aware that an insufficiency of insulin in the body leads to the development of diabetes mellitus. It is caused by the degener
how can a person breathe
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