6. Chemical Quantities & Aqueous Reactions
Complete Ionic Equations
Multiple Choice
Multiple ChoiceAn unknown sample is analyzed using the general qualitative analysis scheme shown in Figure 18.16. The sequence of reagents shown in the figure are used and a precipitate in only produced when (NH4)2HPO4 in NH3 is added. Which of the following describes a set of ions that might be present in the solution?
A
Mg2+
B
Ba2+ and Mg2+
C
Ba2+, Mg2+ and Na+
D
Ag+, Ba2+, Mg2+ and NH4+
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