The chemical formula of magnesium carbonate is .

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Solution

Valency of $M g^{2 +}$ = 2
Valency of ${C O}_{3}^{2 -}$ = 2

Symbol Mg ${C O}_{3}$

Valency 2 2

Upon criss-crossing the valencies and balancing them, we get the formula of the compound as $M g {C O}_{3}$ .

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The chemical formula of magnesium carbonate is .

Valency of Mg2+ = 2 Valency of CO2−3 = 2 Symbol Mg CO3 Valency 2 2 Upon criss-crossing the valencies and balancing them, we get the formula of the compound as MgCO3.

Valency of $M g^{2 +}$ = 2
Valency of ${C O}_{3}^{2 -}$ = 2

Symbol Mg ${C O}_{3}$

Valency 2 2

Upon criss-crossing the valencies and balancing them, we get the formula of the compound as $M g {C O}_{3}$ .