A element x reacts with o2 to form the compound x2o5.if 0.35g of the element forms 0.55g of the compound.what is the approximate atomic .mass of the element.
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Answer:70
Explanation
Reaction
2X+5/2O2--X2O5
2X=0.35g x2o5=(2x+5*18)=0.55g
By equating
2x(0.55)=(2x+5*18)0.35
1.1x=0.7x+28
0.4x=28
X=70
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