Even when mixed, elements and molecules still keep their unique properties. Explain why.

Mixing is a physical reaction, which does not change any chemical properties of elements and molecules because it does not change the number of protons.

It is the number of protons that determine the unique properties of each element (hence why the periodic table sorts elements by increasing the number of protons).

step-by-step explanation:

107 units

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s