Specific specific heat capacity of solid copper metal is 0.385 J how many joules of heat are needed to raise the temperature of 1.5 kg blocks copper from 33°C to 77.5°C

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.  

how important do you think an instrument is to the musician who plays it?