The information shows the masses after the compounds are balanced. 2MgO + 2Cl2 → 2MgCl2 + O2

85g + 156g → 188g + ?

If the following materials are used during the reaction of magnesium, oxygen, and chlorine, what mass oxygen would we expect to see after the reaction and why?

A.
53g of O2, because all mass must be conserved.

B.
241g of O2, because all mass must be conserved.

C.
42.5g of O2, because all mass must be conserved, it would be half of the compound MgO in the products.

D.
106g of O2, because all mass must be conserved, it would be double the compound MgO in the products.

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Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?