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Q. Objective of elements of group 16? You should be able to: • describe the occurrence, extraction and uses of the elements of Group 16, • describe the allotropic forms o
Amongst the following covalent bonding is found in: (1) Sodium chloride (2) Magnesium chloride (3) Water (4) Brass Ans: Water
A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.
3-methylhexane impact name
In naturally occuring neon, the fracional abundance of various isotopes is as follows: 20Ne =0.9051; 21Ne = 0.0027; 22Ne = 0.0922. What is the atomic mass of neon?
Number of electron does species have The H2 2- ion can be conceived to result from the combination of two hydride ions (H-). This species have four electrons; two occupy the b
Explain trend in variation of the atomic size properties from Boron and Thallium
type of electrode?
why all scandium salt are white
Ammonia is a gas for which reliable analytical methods are available to determine concentration in other gases. To measure flow in a 15 inch schedule 40 natural gas pipeline, pure
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