Valence electrons are the electrons in the outermost shell of an element on the periodic table. Atoms want to be able to have a full outer shell and they can share or trade electrons in order to achieve this. Valence electrons are also super super important in chemical reactions. The number of valence electrons determines what group that specific atom or element is in on the periodic table. This affects the reactivity of the element.
The answer would be Force
The reagent which limits the reaction is called limiting reagents.
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For example:- N2+3H2gives 2NH3.so here nitrogen limits the reaction.
Answer:
it is a replacement reaction
