Question

17.
a) Write one point of difference between an atom and a ion.
b) What are polyatomic ions? Give an example
c) Calculate the molecular mass of i)HNO3 ii) Al2(SO4),
(Atomic mass of H-lu, N-14u, 0-16u , Al-27u, S-32u)​

Answer 1

Answer:

The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. An atom is the basic unit of an element. ... A stable atom contains the same number of electrons as protons and no net charge.

b. Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms

Answer 2

Answer:

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Explanation:

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