I think its 5 I have not learned this so it is my best guess
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<span>A similarity between the separation of powers the system of checks and balances and federalism is?
</span><span>A similarity between the separation of powers, the system of checks and balances, and federalism is that they all are meant to keep the federal government from becoming too powerful and tyrannical. </span>
Answer:
Case I - Number of leaves
Case II - Acid level of lake
Explanation:
A controlled variable is the one which is kept constant or unchanged throughout an experiment.
In the question –
For case I –
Here the impact of number of leaves on a given tree is studied on the number of nest build by birds.
Thus, the number of leaves is a constant variable that shall remain constant throughout and hence it is a controlled variable.
For case II –
Just like in the above case, in this case too the acid level of the lake shall remain constant as the effect of acid level of lake is studied on the survival instinct of fishes in the lake.
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.
Liquid silver is less dense than solid silver, so the solid silver would sink