Periodic Table, Chemistry

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Basics of Periodic Table.

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Atomic Mass, Need to know about atomic mass of clorine

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copper reacts with oxygen to form two oxide X and Y .On analysis 1.535g of X yielded 1.365g of copper and 1.450g of Y yielded 1.160g of copper. [I] determine the chemical formula o

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Explain the structure of single covalent bonds, Q. Explain the structure of...

Q. Explain the structure of Single covalent bonds? Ans. Atoms tend to achieve the stable electron configuration of a noble gas when forming a bond. In covalent bonding thi

Non-ideal gases, Perfect gases are assumed to be comprised of infinitesimal...

Perfect gases are assumed to be comprised of infinitesimally small particles and to interact only at the point of collision. At intermediate pressures, the volume of the gas become

How does vulcanization change the natural rubber, a. How does vulcanization...

a. How does vulcanization change the character of natural rubber? b. Why are the numbers 66 and 6 put in the names of nylon-66 and nylon-6?

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Penny Lab, Pennies made after 1982 are made of 97.5% zinc and 2.5% copper i...

Pennies made after 1982 are made of 97.5% zinc and 2.5% copper instead of 95% copper and 5% zinc. Pree 1982 pennies weighed 3.10g. The penny contained 2.95g of zinc and 0.15g of co

An element has the electronic configuration, An element has the electronic ...

An element has the electronic configuration 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 2 . Its valency electrons are: (1) 6        (2) 2         (3) 3       (4)4 Ans: 4

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