We know that density = mass /volume
so
mass=volume*density
volume=mass/density
so c is wrong
I don’t know “which substance” are you talking about??
You can put the picture there so we can see.
Well not calculus because that has nothing, well mostly nothing to do with balancing chemical equation, so B or C. Now for me personally B is way faster, though C is sometimes faster if you get lucky the way to solve it is B
