Balance Oxygen gas reacting with Calcium Flouride

8. what happens to matter during a chemical reaction

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

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.