A 0.70 g sample consisting \[Ca{{C}_{2}}{{O}_{4}}\] and \[Mg{{C}_{2}}{{O}_{4}}\] is heated at \[300{}^\circ C,\] converting the two salts of \[CaC{{O}_{3}}\] and \[MgC{{O}_{3}}\]. The sample when weighs 0.47 g. If the sample had been heated to \[700{}^\circ C\] where the products are CaO and MgO. What would be the weight of mixture of oxides?

A 0.70 g sample consisting \[Ca{{C}_{2}}{{O}_{4}}\] and \[Mg{{C}_{2}}{

1.	A 0.70 g sample consisting \[Ca{{C}_{2}}{{O}_{4}}\] and \[Mg{{C}_{2}}{{O}_{4}}\] is heated at \[300{}^\circ C,\] converting the two salts of \[CaC{{O}_{3}}\] and \[MgC{{O}_{3}}\]. The sample when weighs 0.47 g. If the sample had been heated to \[700{}^\circ C\] where the products are CaO and MgO. What would be the weight of mixture of oxides?
A.	0.36 g
B.	0.14 g
C.	0.28 g
D.	1.08 g
Answer» D. 1.08 g

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