I know CL is chlorine and NA is sodium.
In a endothermic reaction energy from an outside source is continuously being added.
<span>Peer review affect research in a good way. Though you have done research time and time again, it's always best to have a colleague or someone in that field to evaluate a peer review to make sure everything in the research is 100% correct. Now some experimental results won't be trusted unless there has been peer reviewed from the scientific community.</span>
