Read the following hypothesis about why a chicken bone becomes bendy after being soaked in vinegar: the bone can bend because the acid in the vinegar has removed the calcium that made it hard.

what prediction could be made based on this hypothesis?

a. an acidic substance like many drinks wouldn't make bones bendy.

b. acids are very powerful substances and should be handled with care.

c. other kinds of bones containing calcium wouldn't get bendy in the vinegar.

d. if the acid was separated from the vinegar, chicken bones wouldn't become bendy in the remaining vinegar.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

since electrons are negative the answer is neagtaive

level 4 to level 2 : ))

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.