Concept explainers
(a)
Interpretation:
Formula of magnesium nitrite has to be written.
Concept Introduction:
Ionic compounds are electrically neutral. This is because there are equal numbers of opposite charges present in the ionic compounds. Empirical formula gives a relative number of atoms of each type of element that is present in the compound to the smallest possible whole-number as subscript. If two moles of polyatomic ions are present, then the polyatomic ion is represented in parenthesis.
(b)
Interpretation:
Formula of lithium phosphate has to be written.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Formula of barium cyanide has to be written.
Concept Introduction:
Refer part (a).
(d)
Interpretation:
Formula of ammonium sulfate has to be written.
Concept Introduction:
Refer part (a).
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