Density is mass per unit volume
remember
p= m/v where v is vol, m is mass and p is density
A five pushing and letting go of the yoyo
The elasticity of a polymer is primarily due to the structure of the molecule and the cross-linking between strands. Hydrogen bonding is a contributor to the shape of the molecule, but not a major player in terms of elasticity. We would have to answer "false".
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