27.6 - 22.3 = 5.3; you simply subtract the old density from the new density.
If you cut the cube and keep all the pieces you are causing only physical change
Because lager objects have much more room for mass the smaller objects. take the earth as an example the earth is very big and has alot of mass in it which makes gravity that pulls us down when we jump up.
I'm not sure what it asks, but it answers
- how many protons are in the nucleus
- how many electrons are in the atom
- where it sits in the periodic table
- If the periodic table is divided in the modern way, it gives a good indicator of whether you are speaking about a metal, a non metal or neither.
