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What substances is the usual reference point for the density of other substances?
Wiki User
∙ 12y ago
The density of a substance is its mass per unit of volume.
Density will be in units of mass (i.e. grams, kilograms, milligrams, etc.) over volume (cubic meter, cubic foot, liters, milliliters, etc.)
For example, the density of water at 20 degrees Celsius is:
kg
998 -----
m3
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoWater is the usual reference point for the density of other substances.
Wiki User
∙ 13y agoFor the densities of chemical elements see the link below.
For other materials please consult a Chemical Handbook or mention here the desired substances and wait for an answer.
Wiki User
∙ 10y agoWater at 20 oC is the most common standard to compare densities with (relative density d20)
Wiki User
∙ 12y agoWater at 4 degrees on Celsius scale
Wiki User
∙ 12y agothe specific gravity
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Why substances have different melting points?
just because accept it ok!
Which state should a reference point be in to be used to determine motion?
The reference point should be stationary, or not moving.
What is the most common reference point for detecting motion?
Earth's surface is a common reference point for detecting motion.
What is a reference point assumed to be?
not moving.
A place or object used for comparison to determine if something is in motion is called what?
A landmark - or reference point.
What substances the usual reference point for the density of other substances?
specific gravity
Explain the base density reference gas liquid?
Since the density of a substances varies with pressure and temperature we need a reference point for comparing the densities of different substances. The reference point we choose is somewhat arbitrary and changes from region to region but is typically atmospheric pressure (14.7 psig or 101325 Paa) and "normal" temperature (15 deg C or 60 deg F). The density measured at these reference conditions is the reference (or base) density. - Jon
What is BP referring to chemical substances?
With reference to chemical substances, the acronym BP would mean boiling point.
Why two different substances have different melting point?
It depends on the density of the substance. The higher the density, the higher the melting point and vise versa.
What are physical and chemical properties of rubidium?
Physical Properties : Colour State(liquid, gas and solid) Melting point Boiling point Density Chemical Properties : How it reacts with other things or substances.
Why do substances with higher density have a higher boling and freezing point?
Um... who says they do? Lead has a significantly higher density than aluminum but a considerably lower melting point.
What information do you need to tell if two substances are the same or different?
density , boiling point, melting point also mass & volume if you wanted to include those
What is one characteristic property of a substance?
i will give you three....melting point, boiling point, freezing point and one more is density
Does reference point depend on direction?
i don't think it does because reference point is a point with other points and lines connected to it so it doesn't depend on direction
Can moving objects be a reference point?
No because enable to see if the object is moving it needs a reference point other than itself.
Why reference points that are stationary are usually chosen to determine whether an object is in motion?
To support you in specifying how the reference point is placed and how the object is moved away from the reference point.
What is the boiling point of any substance?
different substances have different boiling points, a main reference to boiling points is the boiling point of water (H2O) which is 100 degrees Celsius
