Answer:
HEMOGLOBIN AND OTHER COMPOUNDS.
Explanation:
In the lungs, hemoglobin, known for its deep red color, reacts with oxygen to form oxyhemoglobin. Oxyhemoglobin travels through the bloodstream to cells, where it breaks down to form hemoglobin and oxygen, and the oxygen then passes into cells.
Explanation:
Oxygen - 65.0%
Carbon - 18.5%
Hydrogen - 9.5%
Nitrogen - 3.2%
Calcium - 1.5%
Phosphorus - 1.0%
Potassium - 0.4%
Sulfur - 0.3%
Sodium - 0.2%
Chlorine - 0.2%
Magnesium - 0.2%
Others < 1.0%
The above is the elements present in the human body. They compose of almost all the 20 first elements on the periodic table. The first 20 elements are seen on all sides of the periodic table.
Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification. So I believe your answer would be A.
Answer:
Free energy change is -7.500248 kJ/mol
Explanation:
If we have the enthalpy change and entropy change, we can find the free energy change using the equation,
ΔG = ΔH - TΔS
Temperature in K = 25°C + 273 = 298 K
ΔH for NaI = -7.50 kJ/mol
ΔS for NaI = 74 J/K mol = 0.074 kJ/K mol
Plugin the above values in the equation, we will get,
ΔG = -7.5 kJ/mol - 0.074 kJ/K mol / 298 K
= -7.5 kJ/mol - 0.000248 kJ/mol
= -7.500248 kJ/mol
