how do you interpret chemical equations in terms of interacting particles?

Answer 1

Chemical reactions are actually collisions between molecules, or particles. In order to have a successful reacton, the particles must have enough energy and they have to be facing the right way (orientaion) for the collision to be successfu.

Not enough energy, or not facing the right way, they simply bounce off and nothing happens

Answer 2

38 B 39 A 40 A 40 3. stirring (stirring vs no stirring), temperature (warm tea vs chilly tea), floor area (powdered sugar vs. sugar cube) 40 4. unusual question, yet i think of the 2nd is DISPLACEMENT and the third is SUBSTITUTION. the 1st is impossible, considering you could not have atoms a and b morph right into a after which into b. that violates the regulation of conservation of mass, considering you're merely removing b after which a out of your equations. ab ought to equivalent a AND b on the products component, and yet you disregarded them contained in the given equation!