17. when does radioactive decay occur?
a. when an atom gains electrons
b. when neutrons accumulate in the nucleus
c. when the nucleus decays
d. when an atom loses electrons

18. why does radioactive decay occur?
a. nuclear forces disintegrate protons.
b. the electric force and nuclear forces are in opposition to each other.
c. the electric force causes electrons to be released.

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.