A steel ball sinks in water but a glass ball floats in mercury. Both will float in........ (a) molten gold (b) molten platinum (c) molten uranium (d) molten copper
Answers
Answer:
a substance can float in another substance if the density of the former is less than the density of the former. “Float” is somewhat of a misleading term in these situations, because there are frequent interactions occurring between the atoms of one substance and the atoms of the other, but it’ll suffice for our purposes. Now, steel has a density of approximately 8.05 g/cubic centimeter. Many substances have densities greater than this. Examples are mercury, lead, and osmium, which have respective densities of 13.56, 11.34, and 22.59, all in the same units as the density above.
Now, the exact density of glass is widely disputed, as it falls along a spectrum, or range. This is because glass can be created in several different ways, and the density of the final product depends on the densities of the individual starting products. However, it is common knowledge that steel is more dense than all forms of glass. Therefore, the glass ball will float in all of the substances named above.
So, the steel and glass balls are both able to float in mercury solutions, lead solutions, and especially osmium solutions (osmium is considered to be the densest substance in our universe).
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Answer:
both will float in ,molten platinum i think it is correct