Question

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Answer 1

Answer:

d) general characteristics of noble gases

hope you got the answer

Answer 2

Answer:

A formula gives the following information:

(a) Formula represents 1 mole of the substance For example, NaCl represents one mole or 6.02×10

23

molecules of sodium chloride.

(b) The formula gives the name of all the elements present in the molecule. For example, elements in Na 2 SO 4

are sodium (Na), sulphur (S), and oxygen (O).

(c) The formula gives information about the number of atoms of elements present in one molecule e.g. Na 2 SO 4

tells that there are two-mole atoms of sodium (Na), a one-mole atom of sulphur (S) and four-mole atoms of oxygen (O) in the molecule.

Hence,the correct answer is (d

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