I think the correct answer from the choices listed above is option 3. In the reaction 2NaCl + 2H2O ? 2NaOH + Cl2 + H2, the reactants should <span>weigh the same as the products. This is to agree with the law of conservation of mass where mass in should be equal to mass out.</span>
He should buy the sander in store, this way it will be available for when he needs it.
C-12? (6 protons) C-13? (6 protons) C-14? (6 protons)
SO3+H2O-->H2SO4
If you need their states
SO3(g) + H2O(l) --> H2SO4(aq)
And they're already balanced