Answer:
The Avogadro's number
Explanation:
the number is 6.02214x10 to the 23 power
<span>The mass of an atom located in the A) nucleus.</span>
Mass of chlorine = (given)
Molar mass of chlorine =
Now, number of moles is defined as the ratio of given mass in gram to the molar mass of the compound.
Number of moles =
Number of moles of chlorine =
=
Now, according to significant figure rules, the least number of significant figure in the question identifies the number of significant figures in the solution.
Thus, in question, both digit have four significant figures, therefore, the answer must be in four significant figures.
Hence, number of moles of chlorine =
Ice melting is a physical change because you are not getting rid of anything, it is simply transforming into another state. The ice is melting because it is heating up and causing the molecules to speed up ans spread out, meaning all of the ice`s properties are still there, just in a different form.
Answer:
A. Physical Change