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Answered 2010-10-12 01:57:04

Temperature in this instance will not affect density, but rather pressure. The density of the gas will be much smaller than the density of a liquid or solid of the same chemical because it is a gas. The formula for density is mass over volume, and a gas has no measurable mass, making the gas always less dense than the liquid and the solid.

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The answer to that depends on the density of the substance in question.For instance the volume of 68 grams of Lead would be smaller than the volume of an equivalent mass of gaseous hydrogen.

Density increases when a substance contracts as it freezes. The substance will have the same mass but with a smaller volume.

It depends upon the temperatures and purity of the two quantities of water. If they are both at the same temperature and both have the same purity, they will both have the same density as density does not depend upon the volume, but the substance itself. If they are at different temperatures, or have different purities, then they will have different densities, but which would be greater would depends upon which has which temperature and which purity.

The density of water is 1 gram per cm3. Any substance with greater density will sink in water. Any substance with smaller density will float on water.

Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density.Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density.

because a higher pressure in a smaller area means there is more of a substance in the area ie greater density

if you make it smaller then density increases (the same amount of matter must occupy a smaller space) and the inverse is true if you make it bigger.

temperature and the amount of oxygen. it depends on what kind of flame it is, like if its a gaseous flame or wood flame.

The density of any substance remains the sameirrespective of its volume.

no, its just broken into smaller pieces, but its still the same thing

Density will increase. The metal contracts (gets smaller) but will still weigh the same thing.

if a substance has more particles in a smaller space (higher density), then the substance can be less easily displaced and has a higher upthrust

The short answer is yes, gas has mass and density. However, you should note that gas is a state of matter, just as solid and liquid are. Since all matter has mass, any substance in its gaseous state has mass. Since all matter occupies space, it has density, since density is defined as mass per unit volume, where volume is space. Larger objects dont always have more mass than smaller objects.

The density becomes larger because the Mass (in the equation D= M/V) is being divided by a smaller number, which causes the Density to turn out larger.The density of a substance is not affected by a change in volume.

It will increase. Density is mass/volume. Mass remains constant since no matter is entering or escaping. Lowering the temperature decreases the volume. Same mass in a smaller space= increased density.

Normally, increasing the solvent temperature will help. Also, you can crush up the substance into smaller pieces and stir the solvent and the solute together.

Whenever something becomes hotter, the atoms become more sparesly separated (expand), therefore giving it a lighter density. Whenever something becomes colder, it will become more compact, therefore becoming more dense (higher density). Yes. Increased temperature results in decreased density (but larger volume) A classical experiment can be done with an ordinary ballon. Blow it up and put it in the freezer. You will see that it becomes a lot smaller. Density increases as volume becomes smaller.

no, density is how closely crowded something is. Or in more sciencey terms: a measurement of how compact a sample of matter is. The more matter packed into a smaller space is the one that is more dense.

For most substances at most temperatures and pressures, when temperature is decreased, volume becomes smaller and density becomes higher. One well-known exception is water between 4 C and 0 C at standard pressure.

The substance in a solution that is present in the smaller amount is called the solute. The substance that has a higher amount is called the solvent.

Because in the solid state, the molecules are packed tighter than in the liquid or gaseous states. Since density is mass per unit volume, you can can a greater mass in a smaller volume due to this tight packing, and thus, the density is greater.

If you don't change the amount of gas, but you just stuff itinto a smaller container, then the density must increase.Remember the definition of density:Density = mass/volume .Since the volume in the smaller container is less, the value ofthat fraction must be greater ==> greater density.

YES. The equation for density is D=M/V, that is density equals mass divided by volume. If the mass of an object is 4g and the volume of an object is 2ml then the density is 2g/ml. On the other hand if the mass of an object is 8g and the volume is 2ml, then the density is 4g/ml. Thus an increase in density. But be careful. If you are asking this: If I have more mass of the same substance is the larger mass more dense? In that case the answer is no, unless you are putting the larger mass into the same volume as the smaller mass.

52, assuming a density (weight per volume) equal to pure water. be definition, at standard room temperature and pressure, one cc of pure water = 1 gram of weight. but gram is a measure of weight only. cc = cubic centimeter = a measure of volume only. if the substance has a different density, the total cc may be less (more dense, a smaller volume water would be) or more (less dense, therefore a larger volume). the exact answer depends on the density of the substance being measured.