A reaction of chlorine gas with sodium solid creates 45.6 grams of sodium chloride. The mass of sodium and chlorine gas prior to the reaction was grams. Your help is much appreciated mortals.∡

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.