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Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.
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Which of the following electromagnetic waves can create ions?
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The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?
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Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull
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Many food chains together create a...
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