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Theo đề bài, ta có: \(\left\{{}\begin{matrix}n_{HCl}=\dfrac{36,5}{36,5}=1\left(mol\right)\\n_{MgO}=\dfrac{10}{40}=0,25\left(mol\right)\end{matrix}\right.\)
PTHH: \(MgO+2HCl\rightarrow MgCl_2+H_2\)
pư..........0,25..........0,5...............0,25.......0,25 (mol)
\(\Rightarrow n_{HClpư}=1-0,5=0,5\left(mol\right)\)
PTHH: \(CaCO_3+2HCl\rightarrow CaCl_2+CO_2\uparrow+H_2O\)
pư...............0,25..........0,5...........0,25........0,25...........0,25 (mol)
\(\Rightarrow m_{CaCO3}=100.0,25=25\left(g\right)\)
Vậy...............
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