Help asap pleaseee. Mg + 2HCl →MgCl2 + H2 What is the maximum amount, in grams, of H2 gas that can be produced when 24.1g HCl reacts with 16.8g Mg?

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

Compare and contrast physical changes with chemical changes.

Calculate the number of moles of ethane in 100 grams