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Describe the difference between an atomic element and a molecular element.
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Q11: Calculate the mass of NH<sub>4</sub>ClO<sub>4</sub>,molar mass =
Q30: If 102.7 g of tin is mixed
Q63: Which of the following elements is a
Q66: A sample of copper absorbs 43.6 kJ
Q71: Which of the gases in the graph
Q77: There are _ mol of bromide
Q169: Kilogram is a measure of<br>A)mass.<br>B)time.<br>C)temperature.<br>D)length.<br>E)volume.
Q188: Which of the compounds of H<sub>2</sub>C<sub>2</sub>O<sub>4,</sub> Ca(OH)<sub>2</sub>,KOH,and
Q203: Choose the reaction that represents the combustion