mMgCO3=24u+12u+48u=84u
mMgO=24u+16u=40u
84g MgCO3 ------ 24g Mg
21g MgCO3 ------ xg Mg
x = 6g Mg
40g MgO ----- 24g Mg
xg MgO------- 6g Mg
x = 10g MgO
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mMgCO3=24u+12u+48u=84u
mMgO=24u+16u=40u
84g MgCO3 ------ 24g Mg
21g MgCO3 ------ xg Mg
x = 6g Mg
40g MgO ----- 24g Mg
xg MgO------- 6g Mg
x = 10g MgO