Answer:
Bismuth, because when three cubes of the same mass were heated and dropped into the same temperature water, the water the bismuth cube was dropped in heated up much less than the water with iron or tin.
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The greatest heat capacity is possessed by iron.
The heat capacity of materials increases as the number of particles in the material or density of the material increases.
This means that the denser a material is, the higher its heat capacity because it has more particles that absorbs heat.
The heat capacity is the quantity of heat required to raise the temperature of 1 gram of a material by 1°C.
The heat capacities of iron, tin and bismuth are: 0.45 J/g °C, 0.213 J/g °C and 0.123 J/g °C.
This follows from the decreasing densities of the metals in the order; iron > tin > bismuth.
Hence iron has the greatest heat capacity among the three elements.
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