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Questions  >>  SAT  >>  Chemistry  >>  chemical formulae
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Q)

Which of the following equations does NOT demonstrate the law of conservation of mass?

$\begin{array}{1 1} (a) NaOH+HCl \to NaclH_2O \\ (b) P_4 +5O_2 \to 2P_4O_{10}\\ (c) 2Na+cl_2 \to Nacl \\ (d) SnCl_2 +2FeCl_3 \to 2FeCl_2+SnCl_4 \end{array} $

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