Answer:
mid-ocean ridges
Explanation:
Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor.
Light and sound aren't matter because Photons have no mass.
<span>Mass Number = (Atomic Number) + (Number of Neutrons) so you solve for the Number of Neutrons and you get:
Number of Neutrons = (Mass number) - (Atomic Number)
Mass Number equals protons plus neutrons, round atomic weight to nearest whole number
Atomic Number equals number of Protons</span>
Answer:


Explanation:
Given the compound 
The steps of reaction:


<u>But this intermediate product has a resonance: </u>

The reaction with I-

