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Chemical reactivity : The substances which react violently or produce flame on contact with water can be given suitable chemical treatment to convert them into nonreactive form before running into the drainage.
Example: Sodium metal.
Those substances which generate heat on mixing with water are treated carefully with large quantity of water in a safe area.
Example: Calcium oxide.
Acidic chemical wastes are first treated with large quantity of sodium carbonate anddhen with a large quantity of water. The treatment with sodium carbonate neutralises the acid since the former is a base.
An experiment with a bottle and cork Tightly close a liitle bottle with a cork or rubber stopper. Place the bottle in the receiver and remove some of the air with the pump.
Primary processing of pulses Dry pulse seeds have a tight and fibrous seed coat (husk or skin) that envelops the cotyledons, which often is indigestible and may have a bitter
What are Fatty acids Fatty acids are grouped into two classes, saturated and unsaturated fatty acids. The terms 'saturated' and 'unsaturated' fatty acid may not be new to yo
Severe Bleeding In case of severe bleeding, use the following steps: (1) Control bleeding by the following means: (a) Apply direct pressure on the wound for 5-15 minute
Remove the wastes from the body - Function of Kidney Remove the wastes from the body. Many metabolic waste products such as urea, uric acid, ammonia and creatinine need to be f
When does an atoll start to form? This starts to form when tiny marine animals - coral polyps - attach themselves to rocks on the seabed.
Maximum in 50 words for 2marks
Explain the Discovery of Cell Let us study here about the scientists who played a pioneer role in discovering the basic component of any living organism -the cell. Robert Hooke
Carbon dioxide has been surmised as an significant component in ceasing the last Ice Age, but its precise function has always been indecipherable as rising temperatures pondered in
What are the chemical properties of acetic acid?
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