The mass of freon-11 gas is m=0.597g m = 0.597 g .
The Paleozoic Era is bracketed by two major events in earth's history. It began with an unexplained explosion in animal life and ended with the world's largest mass-extinction known to man. The causes of these great events are currently unknown and under debate.
I don't think so, but if you have it they will most likely look into it.
