315g/95gmol-1
3.315 moles of MgCl2
To solve this problem we will use the concepts related to Magnification. Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a calculated number also called "magnification".
The overall magnification of microscope is

Where
N = Near point
l = distance between the object lens and eye lens
= Focal length
= Focal of eyepiece
Given that the minimum distance at which the eye is able to focus is about 25cm we have that N = 25cm
Replacing,


Therefore the correct answer is C.
Answer: Volcanoes and ridges are landforms that are created by the movement of tectonic plates.
Explanation:
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The universe is 13.8 billion years old.