C: 23Na+
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Which process has the largest enthalpy change per mole?
This question refers to isolated gaseous species. The species F⁻, Ne and Na⁺ are isoelectronic. This means they have …
An ion with a charge of 2- contains 10 electrons and 14 neutrons. What is its nucleon number?
In which pair will each compound give a different visible result with alkaline I₂(aq)?
Which reagent gives a positive result with propanone?
Esters can be hydrolysed with an aqueous alkali or an aqueous acid to form two products. The table compares the two m…