Answer is 0.10 mol.
<em>Explanation;</em>
n = m/M
Where n is number of moles (mol), m is the mass of substance (g) and M is the molar mass of the substance (g/mol).
n = ?
m = 0.40 g
M = 4.0 g/mol
From substitution,
n = 0.40 g /4.0 g/mol
n = 0.10 mol
Hence, the balloon has 0.10 mol of He.
Depending on the testing process being used, it may affect the object by making it shape differently, scratch, it or sometimes do absolutely nothing. hope this helps:)
The critical angle for the interface between water and diamond is 33.4 degrees.
<h3>What is the critical angle?</h3>
The greatest angle at which a ray of light traveling through one transparent medium can hit the border between that medium and a second of lower refractive index.
It strikes the border without being completely reflected within the first medium is called the critical angle in optics.
Thus, the critical angle for the interface between water and diamond is 33.4 degrees.
Learn more about the critical angle
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Answer:
They curve in opposite directions because of one reason(s) latitude and longitude. Because these are different places, they will experience different weather conditions based on how far they are from sea level.
Explanation:
D. microwaves, Ultraviolet, x-rays
