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Nguyên tử X có rỗng số e trên các phân lớp là 5 . Số hiệu nguyên tử của X là
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Chemistry, 22.06.2019 12:10
If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?
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Chemistry, 22.06.2019 23:40
The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.
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Chemistry, 23.06.2019 05:40
Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.
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Nguyên tử X có rỗng số e trên các phân lớp là 5 . Số hiệu nguyên tử của X là...
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