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

Answer 1

False. Density is mass divided by volume. If it is a true substance, its ratio of mass to volume should be constant.

Answer 2

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.

Answer 3

actual yet little or no version.... Density, ratio of the mass of a substance to its volume, expressed, as an get mutually, in instruments of grams in accordance to cubic centimeter or pounds in accordance to cubic foot. The density of a organic substance varies little from pattern to pattern and is often seen a function resources of the substance. maximum aspects undergo improve even as heated and hence have decrease densities at more effective temperatures. Many aspects, exceptionally gases, could be compressed right into a smaller volume through increasing the stress appearing on them. For those motives, the temperature and stress at which the density of a substance is measured are frequently diverse. The density of a gas is often switched over mathematically to what it may be at a familiar temperature and stress (STP). Water is unusual in that it expands, and therefore decreases in density, because it really is cooled decrease than 3.ninety 8'C (its temperature of optimal density

Answer 4

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.

Answer 5

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.

Answer 6

False

Answer 7

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!

Answer 8

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.

Answer 9

false - as long as it's the same substance, it's density should always remain the same.

Answer 10

false....thats all i can say