what is the percent by mass of KCL in a solution that contains 12.5 grams of KCI in 250 grams of solution

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.

i had the same answer and put c. deflect randomly in multiple directions.   i looked it up on google and what i found was this;

scattering of light: by small particles and molecules in the atmosphere. different from reflection, where radiation is deflected in one direction, some particles and molecules found in the atmosphere have the ability to scatter solar radiation in all directions.

i know it's kinda annoying when you are just given a google article but this is why i think it is c.   i will try to let you know if i got it right.