Why? The density remains the same
because cutting the object in half will divide the mass & volume by the same amount
. Also, the density of a substance remains the same no matter what size it is. All matter has its own unique density.
Is the density of a substance is the same for all samples of the substance?
Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v. The density of water is 1 gram per cubic centimeter. The density of
a substance is the same regardless of the size of the sample
.
What does it mean if two substances have the same density?
Density is an intensive property, which means that it doesn’t depend on the amount of the substance present. If two liquids have the same density, then
any volume of the first substance will have the same density as any volume of the second substance
. Changing the volume of a substance doesn’t change the density.
Is density unique to each substance?
DENSITY is a physical property of matter, as
each element and compound has a unique density associated with it
. Density defined in a qualitative manner as the measure of the relative “heaviness” of objects with a constant volume.
Can two things have the same density?
Answer:Because mass and volume are independent, two objects with the same volume can have different masses. Therefore, the objects can have different densities. However,
if two objects have the same mass and volume, they will have the same density
.
Do any substances have the same density?
Each substance has its own characteristic density
because of the size, mass, and arrangement of its atoms or molecules.
How can density be used to identify a substance?
You can identify an unknown substance by
measuring its density and comparing your result to a
list of known densities. Density = mass/volume. Assume that you have to identify an unknown metal. You can determine the mass of the metal on a scale.
What two factors affect density?
Answer: The density of an object or quantity of matter is
its mass divided by its volume
. This is usually measured under standard conditions for temperature and pressure: 0°C and 1 atmosphere of pressure.
Can scientists use the measure of density to tell if something will float?
Since different substances have different densities, scientists can measure the
density
of a substance to identify the substance. They can also use the measure of density to find out if the substance will sink or float.
Do all liquids have the same density?
Sink or Float:
All Liquids Do Not Have the Same Density
.
Where is density used in real life?
Everyday Density Examples
In an
oil spill in the ocean
, the oil rises to the top because it is less dense than water, creating an oil slick on the surface of the ocean. A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink.
Why is density used to identify a material?
Density can be useful in identifying substances. It is also a convenient property because it
provides a link (or conversion factor) between the mass and the volume of a substance
. Mass and volume are extensive (or extrinsic) properties of matter – they depend on amount.
Why is density a useful property to know?
Density is calculated as the mass of an object divided by its volume (d = m/V). … Density is an important concept because
it allows us to determine what substances will float and what substances will sink when placed in a liquid
.
Is density of pure substance always the same?
Why?
The density remains the same
because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is. All matter has its own unique density.
Can liquid and solid have same density?
The particles of a solid are very close together. It melts when it changes from the solid state to the liquid state. The particles remain close together, so there is usually only a small increase of volume . The
same mass of liquid
will have slightly greater volume than the solid.
What is a non example of density?
To find a non-example for density, it should posses no mass. As anything that would have mass will have density in it.
The electromagnetic waves or radiations
are one of the examples of non-examples of density. Light can also be considered for this example.
