A model aids in visualizing a molecule and understanding its properties.
In chemistry, models of molecules give us an idea about the arrangement of atoms in the molecules. Usually, the arrangement of atoms in a molecules determines the kind of reactions that the molecule can undergo.
Models are three dimensional representations of what molecules look like. They help us to conceptualize the possible orientation of atoms and groups in the molecule.
Looking at the model of H2SO4, it becomes easier to understand the chemical and physical properties of the compound owing to the arrangement of atoms.
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Answer:
Coal
Explanation:
This is because coal takes millions of years to form so it is considered nonrenewable.
I would say D. Let me know if i am wrong.
Blood<span> is a heterogeneous </span>mixture<span> cause the </span>blood<span> cells are physically separate from the </span>blood<span> plasma. :)</span>
Answer:
Comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.
Explanation:
This feature of a comet develops when the celestial body passes close to a star such as the sun. The ice around the nucleus of the comet sublimates forming the coma around the comment (when hit by light photons as observed from the earth). The tails are also formed by the ice being pushed a bit behind the comet by light pressure.