How does the amount of space between particles differ in the ballon and helium cylinder

What are the genotypic and phenotypic ratios

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present