When Iron is combined with Oxygen _________________ is formed.

_________________ retain the properties of the substances that make them up.

__________________ is a change of matter that results in a new substance that is different from the original substances.

A ________________ is formed when the atoms of two or more elements combine.

Adding heat to a marshmallow will produce ____________ and ____________.

The compound is often the name of the _______________ plus a modified form of the second elements name.

A ________________ shows which elements have combined to form that particular compound.

_________________ let you know the number of atoms that have combined.

You can check ________________ properties like density, freezing, melting, and boiling points and color.

You can check _______________ properties. For example the color the atoms give off when they are reacting. Certain compounds give off certain colors.

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