1. a. Imagine that there is a certain copper containing metalloprotein, abbreviated R, which contains two copper atoms per molecule of protein. The molar mass of R is 107,000 g/mol. What is the mass % of copper in the metalloprotein?

one state would change   like louisiana to texas. thats a change

explanation:

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este