The separation can easily be carried out on the basis of the difference in densities of polyehtylene terephthalate (PETE) and high density polyethylene (HDPE). To do this, we may grind the polymers into chips and then begin vibrating the mixture of the plastics. The more dense HDPE chips will settle to the bottom and the less dense PETE chips will remain at the upper portion.
The sequence of coefficient that should be placed in the blank space to balance ii as follows
the sequence is 2 infront of Al 3 infront of O2 and 2 infront of Al2O3
that is 2Al +3O2 = 2Al2O3
from equation above 2 moles of Al reacted with 3 moles of O2 to form 2 moles of Al2O3
Answer:
7.
D. remains of meteoroids that hit the Earth
8.
C. icy ball of rock that displays a coma, a fuzzy temporary atmosphere, or a tail
9.
A. silicon, oxygen, and at least one metal
10.
A. They are valuable minerals.
11.A. The resulting cloud would block out sunlight.
12.B. crater
13.A. Asteroid Belt
is a type of energy wich start off any reaction
Answer:
there are literally millions - alkanes, alkenes, alkynes, alcohols, esters, carboxylic acids... to name but a few.
Explanation: