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### Is aluminium a post-transition metal?

Certainly I know to which group of the periodic table does it belong, and the IUPAC Group 13 obviously comes after groups 3–11. But look: aluminium belongs to a short Period 3 where no transition ...
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### Coordinate bonds between molecules

For the following question Which molecules react to form a dative/coordinate bond? A. $\ce{CH4}$ and $\ce{NH3}$ B. $\ce{C2H2}$ and $\ce{Cl2}$ C. $\ce{NH3}$ and $\ce{HF}$ D. $\ce{Cl2}$ ...
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### Does LPG (cooking gas) react with water? [closed]

If cooking gas (or LPG) was exposed to some water in the gasline system, what would be the resultant by-product, and would this induce flame into the cylinder for explosion?