Question

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

Answer 1

another way to ask this is "which equation isn't balanced properly?"

Answer 2

Wouldnt it be the first one that isnt balanced?

Answer 3

the first reaction is balanced, so it's not that one