1. What evidence of a PHYSICAL change would you find in a holiday feast or over Thanksgiving break? For example, describe a change in mass, volume, state or shape where the original substance has not been chemically changed. Be specific and give details.

Cooking a Roll

Explanation: When you put the roll into an oven it is a light tan color and it is small and flat. When you take the roll out of the oven the roll is bigger and taller and has a golden brown top. This is a physical change because all of the ingredients in the roll did not change and the roll is still a roll it just cooked.

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.