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Which of the following has no electrons? use a periodic table. question 1 options: h he h– he ²⁺
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7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '
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In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
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How many atoms or molecules are there in a mole of a substance?
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Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next
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Which of the following has no electrons? use a periodic table. question 1 options: h he h– he ²⁺...
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