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Identify the species which completes the nuclear reaction.

1. Which species completes this nuclear equation:

1561_nuclear reaction.jpg

What is the molarity of an HNO3 solution, if 24.1 mL of a 0.250M Ba(OH)2 solution are necessary to titrate a 15.0mL sample of the acid?
A 0.803 M HNO3
B 0.201 M HNO3
C 0.311 M HNO3
D 0.156 M HNO3
E 0.402 M HNO3

Which salt forms a solution with a pH < 7 while dissolved in water?


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