The correct answer would be the last one.
Answer:
NaOH is the limiting reactant.
Explanation:
Hello there!
In this case, since the reaction taking place between sodium hydroxide and chlorine has is:
![NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O](https://tex.z-dn.net/?f=NaOH%2BCl_2%5Crightarrow%20NaCl%2BNaClO%2BH_2O)
Which must be balanced according to the law of conservation of mass:
![2NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O](https://tex.z-dn.net/?f=2NaOH%2BCl_2%5Crightarrow%20NaCl%2BNaClO%2BH_2O)
Whereas there is a 2:1 mole ratio of NaOH to Cl2, which means that the moles of the former that are consumed by 0.85 moles of the latter are:
![n_{NaOH}=0.85molCl_2*\frac{2molNaOH}{1molCl_2}\\\\n_{ NaOH}=1.7molNaOH](https://tex.z-dn.net/?f=n_%7BNaOH%7D%3D0.85molCl_2%2A%5Cfrac%7B2molNaOH%7D%7B1molCl_2%7D%5C%5C%5C%5Cn_%7B%20NaOH%7D%3D1.7molNaOH)
Therefore, since we just have 1.23 moles out of 1.70 moles of NaOH, we infer this is the limiting reactant.
Regards!
Answer:
<em>Heat from the Earth's core and radiation from the Sun is transferred to the surface of the Earth by conduction. Contact of the atmosphere with these warm surfaces transfers thermal energy, which then heats up the rest of the air through convection.</em>