Planck length is the smallest unit of length
The question is asking to choose among the following choices that states an example of how the scientist might use a model and base on my investigation, I would say that the answer would be letter <span> d. the end of a slinky is moved vertically up and down to simulate a wave. I hope you are satisfied with my answer and feel free to ask for more</span>
Answer
- continuous removal of PH3
- adding more of P into the system
Explanation:
In the reaction P4(g)+6H2(g) ⇌ 4PH3(g);
- The effect of temperature on equilibrium has to do with the heat of reaction. Recall that for an endothermic reaction, heat is absorbed in the reaction, and the value of ΔH is positive. Thus, for an endothermic reaction, we can picture heat as being a reactant:
heat+A⇌BΔH=+
- Since the reaction is endothermic reaction, heat is a absorbed. Decreasing the temperature will shift the equilibrium to the left, while increasing the temperature will shift the equilibrium to the right forming more of PH3.
- According to Le Chatelier’s principle, adding additional reactant to a system will shift the equilibrium to the right, towards the side of the products. In the same Way, reducing the concentration of the product will also shift equilibrium to the right continually forming PH3 as it is removed.
Id guess its NF3 as...
(+)NaCl(-) = 0 is linear and the charges cancel so its no polar
(+3)AlF3(-3) = 0 the charges cancel so its non polar
Br2 is a diatomic element and elements don't have charges so its non polar
NF3 the N has a lone pair of electrons (:) and so it will repel the fluorine's as fluorine is the most electronegative element there is an unbalance in the charges so NF3 is polar
hope that helps