In a balloon there is a low pressure within the balloon. This means that the particles are more spaced out. Wheras in the cylinder they are under high pressure, meaning that the particles are much closer together!
Answer:
95% Copper and 5% Zinc
Explanation:
Easy stuff read in the chemistry book...
So I believe you are supposed to take notes based on the guiding questions (the questions on the side).
An electron shifts from a lower energy to a higher energy