True or False? The density of a substance varies with the samples of that substance.?

False. Density is mass divided by volume. If it is a true substance, its ratio of mass to volume should be constant.True or False? The density of a substance varies with the samples of that substance.?
True, you compress any gas substance to increase it's density.


Density is mass divided by volume, both of mass and volume of a substance varies.True or False? The density of a substance varies with the samples of that substance.?
false....thats all i can say
True.





Few things are an exact match. On some things (say a sponge) we might be able to measure the different densities of various parts of the sponge and find some more or less dense than the sponge as a whole.





Even pure water may not be exactly the same density throughout. This could be caused by differences in the heat content of a particular sample of water. We might not be able to measure the differences, but they are there.
False
false - as long as it's the same substance, it's density should always remain the same.
It depends of if the substance is a compound or mixture, etc. Water, for example, has a different density at different temperatures.





So....It's true! Sometimes!
This is not as simple as true and false. The real answer is that it depends on the substance and whether we're talking theoretically or in the real world. Theoretically, the answer is false for any completely homogenous substance. In the real world the answer is true depending on the purity of the substance, how well mixed it is and how precise your measurements are. If you refine gold using state of the art refinement processes, you can expect that the density of samples of that gold will vary within an extremely small range. A range that may be immeasurable by all but the most precise equipment. On the other hand, if you measure the density of samples fresh out of the ground, you will find a wide variance since all sorts of impurities will be present.
True. Realistically, every sample that you take of a certain material isn't going to have the same density. Depending on what you have it can vary according to environmental factors like temperature. However, you can usually rely on the average density of a certain material that you would find in a textbook.