Answer:When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... They contract when they lose their heat.
Explanation:Google
Diamond and <span>Graphite are some allotropes.
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Answer:
Gaseous solution isn't dense, neither the solid, but liquid is denser
Explanation:
Gas: only gases are dissolved under a given set of conditions.Since interactions between molecules play almost no role, dilute gases form rather trivial solutions. In part of the literature, they are not even classified as solutions, but addressed as mixtures.
Liquid: If the solvent is a liquid, then almost all gases, liquids, and solids can be dissolved.
Solid: Solid solution is less denser than liquid.