help please B is part of question 6. need help on all Chemistry 3 - Second Hour
ID: 1046383 • Letter: H
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help please B is part of question 6. need help on all
Chemistry 3 - Second Hour Exam The formula for the hexanitrocoba compounds formed from the hexanitrocobaltate (IIl) ion and cations from ele and 12 altate (II) ion, is Co(NO). Write the formulas for and name the elements having Z numbers of 19, 31, 6. Write the correct formulas and balance the equations: A. Gallium plus perchloric acid yields gallium perchlorate plus water plus dichlorine trioxide. (Note: the coefficient of the water is 15 and the coefficient of dichlorine trioxide is 3.)Explanation / Answer
5.
K3[Co(NO2)6] ( Cation with atomic number 19 )
Ga[Co(NO2)6] ( Cation with atomic number 31 )
Mg3[Co(NO2)6]2 ( Cation with atomic number 12 )
6.
(a)
8 Ga + 30 HClO4 -----------> 8 Ga(ClO4)3 + 15 H2O + 3 Cl2O3
(b)
Sr(OH)2 + 2 HClO4 ---------> Sr(ClO4)2 + 2 H2O
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