When bonds between atoms are broken or formed, what is the outcome?
a. a physical change
b. an element increasing in size
c. a chemical change
d. a change of state

When bonds are broken or formed, the result is decomposition or synthesis, resulting one or more elements or compounds.
Therefore these are chemical changes.

Bsame force but in the same direction

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.