25 g of hydrogen gas reacts with 25 L of oxygen gas. What mass of water can be
produced?

What are the similarities of physical and chemical change ?

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Why are people not able to skip a dive to the deepest part of the ocean