As the volume of a gas increases <em>at constant temperature</em>, the number of particle impacts per unit area decreases.
There is the same number of impacts, but they are spread over a larger surface area.
Thus, the number of impacts per unit area decreases.
1 is D 2 is c 3 is A and 4 the nucleus is so big because it is one of our largest cells in our body... hope this helps!!!!!!!!!!!
Answer:
Model
Explanation:
A model of anything is something you make to represent it in it's physical world form
Answer:
Here's what I find.
Explanation:



The sign of ΔH changes when you reverse the reaction.
Displacement, usually the method that is used to measure the volume of an irregularly shaped object.