The main difference between concentration and density is that concentration refers to how much of a substance is present in a mixture, whereas density refers to the mass of a substance per unit volume.
Gamma rays have the highest penetrating power so it can only be stopped by thick layers of dense metal. :)
A I think I could be wrong I’m not good at this
6.9 Sleps 1. (8)(13) = 15 2. 104/15 = 15/15 3. 6.93333333 4. 6.9 Sleps
Answer: Carbon monoxide, or "CO", is a compound. This is a homogeneous compound (not a mixture).
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