The physical properties of each material can be used to tell each apart. One example of these properties is their respective densities and polarities, among others.
In the case of Cork and Lead, we can name differences such as:
- Densities, since lead has a very high density when compared to the low density of cork
- Colors, given that lead is a blueish silver color and cork is not.
- Melting points are another way to tell them apart since lead melts at 330 degrees while cork begins to melt at 200.
As for copper and silver, though not identical in numbers, both elements share a wide range of properties. One physical property to be used when telling them apart is color, as silver has its own aptly named color whilst copper shines in a bright brown-red coloration.
As opposed to the previous group, benzene and water can often be physically identical. However, this does not mean that they share all physical properties. One example of this and a property that can tell them apart is their polarity, given that water is highly polar and benzene is not polar at all.
Of the groups listed, the grouping of sulfur and iron is the easiest to differentiate given that they possess distinct:
- Color
- Melting points
- Boiling points
- Odors
- Conductivities
and so on.
These are some properties that are different between each grouped elements and can be used by scientists or students to differentiate the substances from one another.
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