Metal Nickel
Silver
Lead
Mercury
Density (g/cm)
8.9
10.5
11.35
13.55
Mr. Keans's class is doing a lab to determine the identity of an unknown metal. Use the table to help determine
the identity of a metal that has a mass of 89 grams and occupies 10 cm of space.
O Nickel
O Silver
O Lead
O Mercury

Explanation:

First, we must find the density of the unknown metal.

Density is found by dividing the mass by the volume.

The mass of the metal is 89 grams and the density is 10 cubic centimeters.

Substitute the values into the formula.

Divide.

Now we know the density and can identify the unknown metal.

The density matches nickel's density. Therefore, this metal must be nickel.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.