Answer:
<h3>The answer is 7.23 moles</h3>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
We have the final answer as
<h3>7.23 moles</h3>
Hope this helps you
Answer;
crushing an aluminum soda can
Explanation;
-A physical change is a type of change in which the form of matter (substance) is altered but one substance is not transformed into another different substance. For example, Crushing an aluminium soda can : after crushing can changes its shape, size but it still remain Aluminum so it is a physical change.
-A chemical change is a process where one or more substances are altered into one or more new and different substances.
The Particles in the gas are to far apart from each other, so they do not have a volume nor shape.
The Hot water of the cofee is the SOLVENT, Sugar is the SOLUTE, and this means the sugar molecules must be HYDROPHILIC
I think the answer you have selected is right, I'm not sure tho
