The main difference between heat and temperature is that temperature is solely dependent on the ? a. velocity of molecules within a body b. mass of a body c. composition of a body d. state of matter

Hey there,

Your question states: The main difference between heat and temperature is that temperature is solely dependent on the ?

Your correct answer would be Velocity of molecules within a body.
This would be main difference between heat and temperature is that temperature is solely dependent on the 

Hope this helps.
~Jurgen

I'm sorry i cant you if you don't list the elements : (

Naoh + hbr -> nabr (salt) + h2o ca (oh)2 + 2hbr - - - > ca (br)2 + 2h2o