Now that you have learned about the composition of compounds, you should be able to answer the following focus questions:
What are chemical compounds?
What can the chemical formula tell us about a compound?
Chemical bond: an attraction between atoms as they react to form compounds
Chemical formula: a formula giving the number of atoms of each of the elements present in one molecule of a compound
Compound: matter that is composed of two or more elements
Substance: matter, either elements or compounds, that has a specific composition and specific properties
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the chemical compound is the substance present in the moleculic materials in the atoms formed by .
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