Question

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Answer 1

Hafnium is more likely to be the identity of the substance.

Step-by-step explanation:

The given information about the substance is:

- Mass: 46.9g

- Volume: 3.5cm^3

- Solid at room temperature (23°C)

We can calculate the density of the substance by replacing the values of mass and volume in the density formula:

`\begin{gathered} Density=(mass)/(volume) \\ . \\ Density=(46.9g)/(3.5cm^3) \\ . \\ Density=13.4(g)/(cm^3) \end{gathered}`

Now we know that the density of the substance is 13.4g/cm^3.

At this point, the substance could be mercury or hafnium, because they have a similar density, but we also know that the substance is solid at 23°C, so since hafnium has a melting point of 2,233°C, it is more likely to be the identity of the substance.,