Answer:

Explanation:
Hello,
In this case, considering that the moles of hydrioiodic acid remain unchanged during the dilution process:

One could apply the following equality in terms of molarity:

Whereas the subscript 1 accounts for the solution before the dilution and 2 after the dilution, therefore, the required volume of 6.00 M acid is:

Best regards.
density= mass/volume
we need the volume of the metal to find the density, in which case the answer would be 64.2/volume=density
I don’t really have a clear answer for you but this might help
It is B: Fixed volume, takes the shape of the container
True, biodiversity creates different species animals depend on each other for food and other reasons so the answer is true.