C.
since opposite charges attract and similar repel!
:)
Density=mass/volume so mass= volume*density
Volume=40*20*9
Mass=7200*2.75
=19800
Now turn it into kg which will be
19800\1000
=19.8
Solids- wood, sand, brick, rock
Liquids- water, milk, blood, coffee
Gases- air, helium, nitrogen, hydrogen
Answer: they both have the same molecular formula but different structural formulae
Explanation:
hope this helps :)
