A solution of NaNO3 contains 38.0g of NaNO3 in 85.0g water. What is the mass percent of NaNO3 in the solution? Select the correct answer below:

4.47%
44.7%
3.09%
30.9%

answer; ///i do believe that the correct answer is (b); ///particle composed of two or more atoms bonded together;

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.