Explain the study of isolated and purified elements
It is only through the study of isolated and purified elements and their combination that one can observe characteristic properties and make cause and effect relationships. What does this statement mean and why can't this be said about mixtures?
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If the chemical reaction has occured by a mechanism that involves more than one step. What is the reaction occurs by the given mechanism?
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It is only through the study of isolated and purified elements and their combination that one can observe characteristic properties and make cause and effect relationships.
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The correlation coefficient (r) between two variables X and Y is -0.9. How much of the variation in the variable Y is explained by the variable X?
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