A calorimeter was used to measure the heat change when an ionic compound dissolves in water. The final mass of the contents of the calorimeter was 50.54 g50.54 g and the change in temperature was 3.05 °C.3.05 °C. Calculate the heat change of the calorimeter contents, given that its specific heat is 4.14 J/(g⋅°C.)4.14 J/(g⋅°C.) q1=q1= JJ Calculate the heat change of the calorimeter, given that its heat capacity is 7.37 J/°C.7.37 J/°C. q2=q2= JJ Calculate the heat change of the solution process.

it is b that is the answer.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.  

answerambulatory;