No, there is a huge variation in size. DNA and protein molecules are relatively huge. Water and oxygen molecules are quite small. Hydrogen is the smallest.
all atoms are generally the same size, so "large atoms" would mean molecules.
distance between molecules
Proteins do it all the time, its called folding.
It is an element
Iron is a metal and therefore is not made of molecules, but rather atoms. Molecules are only for covalent substances like sand, which is SiO2. No, they would not look the same if you could magnify them enough to see them. Metals form a "sea of electrons" with the inner shells of the atoms surrounded by delocalized electrons. SiO2 is a network solid which would have more of a lattice type structure. The size of the atoms would be different as well.
No. molecules are smaller.
A calorie is a measurement of energy and has no size.
all atoms are generally the same size, so "large atoms" would mean molecules.
They relate because they have the same shape and size.
the sponge has less molecules where as the book has more molecules in one place
No, all plates are not the same size
No, all plates are not the same size
the sponge has less molecules where as the book has more molecules in one place
the molecules shrink and then grow then explode in your face
No they do not.
distance between molecules
Water and Moisture (water vapor) are the same molecules, just in different physical states. It's all water, so the molecular sizes are the same.