low altitudes, O2 gas is very stable while S2 gas decomposes within minutes in sunlight.  Why does this occur?

Q: KMNO4, H3O* heat

A:

Q: What is the reaction in CaCl2+FeCl3

A: In a chemical reaction, reactants combine together to form products.

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A: To determine the number of unhybridized 2p orbitals of C in CO2

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A:

Q: Why is the Grignard reaction important? Give examples of its impact on everyday life

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A:

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Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.