Answer:
A. substance Y will float on top of substance X.
Explanation:
If an objet is more dense that other, the first one will sink because it weights more per militer, as you can see in the image below. In our case, Substance X is heavier than Y, that means that X will sink = Y will float.
This problem is providing us with a statement in which we need to figure out the word fitting in the blank. At the end, after analyzing the information, the word turns out to be colligative as show below:
<h3>Colligative properties.</h3>
In chemistry, colligative properties of solutions account for the behavior of a solution with respect to the pure solvent, to which a solute is added.
Among them, we have boiling point elevation, freezing point depression, vapor pressure lowering and osmotic pressure, which are all affected by the concentration of the solute but not by the identity of the solute.
In such a way, we conclude that the correct word that fits in the blank is colligative as shown below:
"Colligative properties depend on the concentration of a solute in a solution but not on the identity of the solute."
Learn more about colligative properties: brainly.com/question/10323760
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!