In ending the titration of KHP, you leave a half-drop of the NaOH hanging from the tip of the buret. The rest of the experiment is done flawlessly. The calculated % acetic acid in the vinegar will be

c. electrical charges of ionic bonds.

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B"hf and f-"  is the correct answer took the test on edgenuity and got it right     

Answer : option a) 84explanation :

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

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