Why is it possible to see yourself in a object that reflects light, but not in one that scatters light

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I think it is because in objects that reflect light, the light is bounces/reflects off the object in one direction and one angle, and hits your eye, causing it to be processed as a reflection of yourself in your brain. But in one that scatters light, it bounces/reflects off in many different directions. Due to this, your brain may not process it as a reflection.
Here is a little bit of extra info:
https://www.sciencelearn.org.nz/resources

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A pulse of light takes 3.00 ns to travel through air from an emitter to a detector. When a piece of transparent material with a

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Answer:

(a) $1.75\times10^8\text{ m/s}$

(b) 1.71

Explanation:

(a) The difference in the times of travel in the two case = $3.20 - 3.00 = 0.20\text{ ns} = 2.0\times10^{-9}\text{ s}$

This difference is the time in the transparent material. With a thickness of 35.0 cm, the speed in the material is

$v = \dfrac{35 cm}{2.0\times10^{-9}\text{ s}}=\dfrac{0.35 m}{2.0\times10^{-9}\text{ s}} = 1.75\times10^8\text{ m/s}$

(b) The refractive index of the material is the ratio of the velocity of light in vacuum to its velocity in the material. Using speed of light in vacuum as $c = 3.00\times10^8\text{ m/s}$ , the refractive index, $n$ , is