The answer is 4.
Gases have low densities, because of the increased space between hight-energy particles.
Answer: I think it’s B
explanation
Hydrogen i suppose is the right one
Answer:
Mass of solution=100g
mass of salt=20g
so; mass of solute=80g
percentage composition =(mass of salt/total
mass) ×100
= \frac{20}{100} \times 100 \\ = 20\%
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hope it helps
Because the oily part of its molecule tends to lay up against solid surfaces, but without much in the way of areas of electric charge that would cause it to stick more firmly to that surface.
