C. because the dam blocks fish from traveling ahead of the dam
Not exactly chemistry but ok.
Phó is one of the famous dish in Vietnamese Culture
Hence, the answer is Vietnamese Cuisine
I believe it is E because Cesium has the most electrons, protons, and neutrons.
The percent yield of indigo : 79.6%
<h3>Further explanation</h3>
Percent yield is the comparison of the amount of product obtained from a reaction with the amount you calculated
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients
Reaction
2C₁₀H₁₁NO₄ + 2H₂O → C₁₆H₁₀N₂O₂ + 2C₂H₄O₂ + 4H₂O
Actual yield = 1.87 g
Theoretical yield = 2.35 g
The percent yield of indigo :
Given :
Temperature , T = 25°C = (25 + 273) K = 298 K .
The standard enthalpy change , .
The standard entropy change , .
To Find :
The standard free energy change at 25° C .
Solution :
Standard free energy is given by :
Therefore , the standard free energy change at 25° C is -502.86 kJ .
Hence , this is the required solution .