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There are only two naturally isotopes of helium on earth. If you increase the % abundance of helium-3, does the % abundance of helium-4 change? Why or why not?
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Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.
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Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife
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Based on its chemical properties, identify the position of each chemical family on the periodic table.
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How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?
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There are only two naturally isotopes of helium on earth. If you increase the % abundance of helium-...
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