Answer:
Probably the answer is B. The number of atoms decreases, the energy that is produced changing the type of atoms ( the quantity of paper) if the burning process is possible in a closed flask
C+2H2 -------> CH4
from reaction 2 mol 1 mol
from the problem x mol 10 mol
x=2*10/1 = 20 mol
Answer: 20 mol of H2.
Answer:
Gravity.
Explanation:
Black holes in the center of most galaxies hold the galaxy together by gravity. Everything is sucked towards the center and kept together.
Here are 5 examples of suspensions mixtures:
<span>1-mercury shaken in oil</span>
<span>2-oil shaken in water</span>
<span>3-powdered chalk in water </span>
<span>4-dust in air</span>
<span><span>5-soot in air</span></span>
<span><span>hope this helps
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