Lead is denser than iron.
This is incorrect. A bar of lead is denser than a bar of iron. Iron bars have a density of 7.87 g/cm3, whereas lead bars have a density of 11.36 g/cm3.
yes
Elemental lead and elemental iron won't react with each other. Lead NITRATE will react with iron; if you mix elemental iron with lead nitrate, you will get ferric nitrate and elemental lead. If you were to suspend a piece of iron and a piece of lead in an electrolyte like seawater, you could make a bad battery - the two metals are only 0.3 volts apart on the galvanic scale.
Yes, aluminum is approximately 2.7 times more dense than water
Copper has a density of 8.9 g/cm3 while iron has a density of 7.9 g/cm3. Therefore copper is denser than iron.
Lead is denser than iron.
Lead oxide
Lead brick
This is incorrect. A bar of lead is denser than a bar of iron. Iron bars have a density of 7.87 g/cm3, whereas lead bars have a density of 11.36 g/cm3.
Lead is denser.
Iron is much denser than a feather. Yet, a particular sample of feathers weighs more than a sample of iron.
iron is much denser than water. So, steel is denser, too, because it is made from iron.
yes
It means that mercury is denser than iron.
Iron is denser than air. Waves travel faster through denser medium.
The density of Iron is a property of the Iron itself, and not related to how much you have of it.
After heating iron in air iron oxides are obtained; these oxides have a lower density than iron.