B is the answer. For an equation to be balanced there must be the same amount of each element on the two sides. The only one where this is the case is B.
Answer:
The scientific method is a system of reasoning. You can make reasonable explanations for something that you are observing in the world.
Explanation:
Answer:
![m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3](https://tex.z-dn.net/?f=m_%7BNa_2CO_3%7D%5E%7Btheoretical%7D%3D6.636gNa_2CO_3)
Explanation:
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In this case, since the decomposition of sodium hydrogen carbonate is:
![2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)](https://tex.z-dn.net/?f=2NaHCO_3%28s%29%5Crightarrow%20Na_2CO_3%28s%29%2BH_2O%28g%29%2BCO_2%28g%29)
Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:
![m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3} *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3](https://tex.z-dn.net/?f=m_%7BNa_2CO_3%7D%5E%7Btheoretical%7D%3D10.52gNaHCO_3%2A%5Cfrac%7B1molNaHCO_3%7D%7B84.01gNaHCO_3%7D%2A%5Cfrac%7B1molNa_2CO_3%7D%7B2molNaHCO_3%7D%20%20%2A%5Cfrac%7B105.99gNa_2CO_3%7D%7B1molNa_2CO_3%7D%5C%5C%5C%5C%20m_%7BNa_2CO_3%7D%5E%7Btheoretical%7D%3D6.636gNa_2CO_3)
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11. I would say physical because the color of the item is changed and the texture and density is changed aswell.