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The density is 2,43 g/cm3.
The density of zirconium (pure metal) is 6.511 g/cm3. The apparent density of zirconium sponge or powder is of course lower.
its density stays the same
It depends on what the one gram is of 1g of lead is denser than 1g of oil (pretty sure because the oil would float on top of water and the lead block would sink)
Sterling silver is 92.5% silver - it generally comes as a block or, more commonly, as a coin or jewelry. I suppose it could, in principal, be ground into a powder and put into a tin, although I don't know why. I'm not sure, even theoretically, if it could be put into a spray, and I don't know what you would do with it if it could - I don't think it would stick to anything. On the assumption that you are looking to coat a base metal with a layer of silver (called "silver coated" if the layer is thin, and "silver plated" if it is thicker), you would use a process called electroplating, which requires an electrolyte solution, wire, a power source and a piece of silver.
no gold does not float in water because it has a density higher than 1 which is the density for water. Therefore, it sinks.rofl
density of aluminum block
The density of the glass has not changed, but since air is less dense than glass, the density of the block has decreased.
well you have to think you would weigh this using grams so the density of a foam block is "Grams per cubic centimeters"
Something to determine volume (like a bucket of water or a ruler), and a balance to determine mass. Divide the mass of the block by its volume to find the density of the block.
the density would be 13.5. the density would be 13.5.
the density is 657.0987536438347355
No. It doesn't matter how heavy a block of wood is, it depends on the density of the wood. Generally wood floats as the density of wood is lighter than the density of the water, so it would float.
on a balance
Volume
Density = Mass/Volume
We infer that the density of the block is less than that of water