Oxyegen is an element that plants produce during the process of photosynthesis for human begins to breathe in. What about oxygen determine's it's chemical reactivity?

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

What does x represent in the formula for the compound xcl4?

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?