Write empirical formula
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Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
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Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds
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What layer of the atmosphere is directly above the troposphere?
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Type the letter that represents the correct location for each particle type below.
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