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Scilla [17]
3 years ago
7

2Mg + O2 = 2MgO.Show that Mg is the limiting reactant?

Chemistry
2 answers:
Ber [7]3 years ago
6 0
If this helps let me know

<span>The limiting reagent is the one that will be all used up if the reaction goes to completion. There is not enough of it present to use up all the other reagent (which is in excess). :)
</span>
raketka [301]3 years ago
4 0
If you are reacting in the atmosphere, then the oxygen is in excess (hopefully atmospheric oxygen will never be the limiting reagent) so since there is a limited supply of Mg that means that it is the limiting reagent

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The composition, in atom percent, of an alloy that consists of 30 wt% Zn and 70 wt% Cu is 29.4 at % and 70.6 at % for Zn and Cu respectively.

<h3>How to convert weight % to atom %?</h3>

The weight percentage of an element can be converted to atom percentage as follows:

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Therefore, the composition, in atom percent, of an alloy that consists of 30 wt% Zn and 70 wt% Cu is 29.4 at % and 70.6 at % for Zn and Cu respectively.

Learn more about atomic percent at: brainly.com/question/10018123

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