The answer of the the reaction between tetrabromoethane and zinc is the image below. Acetylene and two zinc bromide are formed
Boiling an egg and vegetables rotting . It is because chemical reaction are reactions where new substances are formed and the reaction are usually irreversible .
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The role energy would have played in forming the black sand on the beach
will be through the erosion and movement of the particles.
Black sand from the beach are formed as a result of the erosion of volcanic
material , dark-colored rocks and minerals. Erosion helps to carry these
particles to the beach thereby making the color of the sand to become dark.
The wave energy present at the beach erodes and moves the materials to
different parts of the beach.
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Answer:
2.439 x 10E24 atoms
Explanation:
from
N=n x NA where
N- number of atoms
n-number of moles and NA is the avogadro's number