When 2 elements are combined it creates an ionic compound
Answer:
Explanation:
2 Na+ 2 H2O → 2 NaOH + 1 H2
<span>NO2 weighs 46.005 grams per mol. There are 6.02x10^23 molecules in a mol. In the given sample of 189.5 grams, there are 4.12 mols. This means that there are 2.48x10^24 molecules of NO2 in the given sample.</span>
Answer:
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