What are compounds?

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Compound

A compound is a substance made up of atoms of more than one element joined together in a molecule.

What are molecules?

A molecule is two or more atoms joined together; the smallest unit of many substances.

Compare and contrast molecules and compounds.

Compare: they both start with atoms, and they form when atoms join together. Contrast: compounds use two different atoms and molecules uses two of the same atom.

Is a single oxygen atom a molecule? Why or why not?

It is a not a single oxygen atom because you need two or more atoms.

What are some uses for new materials scientists have developed?

Safety helmet, sunglasses, weatherproof jacket, fleecewear pants, tennis racket, gel-cushion in shoes, bone cement, and inline skates

How are compounds different from elements?

They have two different atoms, and two properties.

How does a compound differ from a molecule?

They need two or more different atoms to make a molecule.

Are all molecules of any one compound, such as water alike?

Yes, a molecule is the smallest part of any compound. Each molecule of a compound is the same.


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