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BigorU [14]
3 years ago
13

PLEASE HELP

Chemistry
2 answers:
AfilCa [17]3 years ago
7 0
I think it’s salt water
Mademuasel [1]3 years ago
4 0
I think the answer is A. Salt water
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How many moles of MgO are produced when .250 mol of Mg reacts completely with O2
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Answer:

0.250 moles of MgO are produced when 0.250 mol of Mg reacts completely with O₂

Explanation:

In first place, the balanced reaction between Mg and O₂ is:

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By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of reactants and products participate in the reaction:

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Then you can apply the following rule of three: if by reaction stoichiometry 2 moles of Mg produce 2 moles of MgO, 0.250 moles of Mg, how many moles of MgO will they form?

moles of MgO=\frac{0.250 moles of Mg*2 moles of MgO}{2 moles of Mg}

moles of MgO= 0.250

<u><em>0.250 moles of MgO are produced when 0.250 mol of Mg reacts completely with O₂</em></u>

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