Answer:
Using dimensional analysis, we have....
4.515x1024 atoms x 1 mole/6.022x1023 atoms = 7.4975 moles = 7.498 moles of PD
So the official answer is 7.5
Explanation:
"Purellium Distinkamide" is a silly joke name for a made-up compound. The idea of this question is that no matter what the substance we are talking about is - water (H2O), hydrogen gas (H2), or even "Purellium Distinkamide" - a mole is always the same number of molecules, 6.022 x 1023. This is Avogadro's number and you have probably seen it around class a lot!
All chemical equations show that the total mass of the reaction stays the same.
Answer : The two spontaneous chemical reactions are:
Explanation :
Gibbs free energy : It is defined as the amount of energy that is available to do useful work.
A reaction to be spontaneous when
A reaction to be non-spontaneous when
For the reaction to be spontaneous, the Gibbs free energy of the reaction is negative or we can say that the value of is less than zero.
From the given chemical reactions we conclude that there are two reactions that are spontaneous (favorable).
The two spontaneous chemical reactions are:
C. they are equal
This is because it takes about the same amount of time for the moon to rotate around its axis that it does to rotate around the Earth.
Answer:
Sugar, sodium chloride, and hydrophilic proteins are all substances that dissolve in water. Oils, fats, and certain organic solvents do not dissolve in water because they are hydrophobic.
And, water is called the "universal solvent" because it dissolves more substances than any other liquid. ... Water molecules have a polar arrangement of the oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge.
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