Story that explains an example of a scientific method

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work