5. which of the following is not a colligative property of a solution? (1 point) boiling point elevation supersaturation vapor pressure lowering freezing point depression 6. a solute depresses the freezing point because the solute (1 point) is colder than the solvent disrupts crystal formation of the solvent disrupts crystal formation of the solvent tends to sink to the bottom of the solution has bigger molecules than the solvent 7. how many milliliters of alcohol are in 167 ml of an 85.0% (v/v) alcohol solution? (1 point) 252 ml 228 ml 145 ml 142 ml

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

the answer is c

tell me if wrong

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.