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22 August, 10:23

Given the chemical formulas CH4, NH3, and H2O, predict the formula for phosphine, P? H?.

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  1. 22 August, 10:30
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    PH3. Phosphorus and Nitrogen are both in group 15, and are likely to act in similar ways. They both tend to form 3 covalent bonds, and since hydrogen forms only one bond, it would take three hydrogens to bond with one phosphorus.
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