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Which of the following chemical equations violates the law of conservation of mass?
A. Ti + 2Cl2 yields TiCl4
B. 2C2H2 + 5O2 yields 4CO2 + 2H2O
C. Li2SO4 + 2Ca(NO3)2 yields 2LiNO3 + 2CaSO4
D, MgSO4 + 2NaOH yields Mg(OH)2 + Na2SO4

Respuesta :

Choice C. There is one sulfate group in the reactants but two in the products. Also, there are 4 nitrate groups in the reactants but only two in the products. 

it breaks the law of conservation of mass C. Li2SO4 + 2Ca(NO3)2 yields 2LiNO3 + 2CaSO4

The following should be considered:

  • In the option c since there is one sulfate group in the reactants however, two in the products.
  • Moreoever, there are 4 nitrate groups in the reactants but only two in the products.

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