Are they densities of everything the same?
no
What is the densest elements at regular conditions?
Osmium and iridium
What is density of a substance?
its mass per unit volume
How is defined mathematically?
mass divided by volume
What does V stand for?
volume
What about P?
density
And m?
mass,
Is the p used actually the English one?
no
What language is it?
Greek
Which letter?
rho
What is another symbol for density?
D
Who gives weight per unit volume as the definition?
the United States oil and gas industry
Is this a good definition?
no
Would you use it in science?
no
What would be a better term for that definition?
specific weight
Where is density the same value as it's mass concentration?
For a pure substance
To make comparisons easier what stands in for density?
A dimensionless quantity
What's an example of that?
relative density
What's another one?
specific gravity
What is the relative density of something that floats?
less than one