A pure substance is either an element or compound. Elements are composed of only one kind of atom, and compounds are composed of a definite proportion of atoms of different elements that is always the same.
Every sample of matter is not a substance because a matter may include multiple substances. A substance contains only one kind of matter.
A pure substance is a kind of matter which is not mixed with any other solution or substance and can't be saperated futher.
"A phase is a state of a...system that has...uniform chemical composition and physical properties.""Matter." Wikipedia. 19 Feb 2008, 04:16 UTC. Wikimedia Foundation, Inc. 19 Feb 2008 .
A pure substance is a material which contains atoms of only one kind. It has fixed physical and chemical properties like boiling point, melting point, valency, density.
Chocolate pudding would be considered a pure substance.
a pure substance! ;)
Every sample of matter is not a substance because a matter may include multiple substances. A substance contains only one kind of matter.
term for that is pure substance
a pure substance. :)
A pure substance is a kind of matter which is not mixed with any other solution or substance and can't be saperated futher.
"A phase is a state of a...system that has...uniform chemical composition and physical properties.""Matter." Wikipedia. 19 Feb 2008, 04:16 UTC. Wikimedia Foundation, Inc. 19 Feb 2008 .
calcium is an element, so it is the pure substance.. it is a grey/silver. calcium is an element, so it is the pure substance.. it is a grey/silver.
For example to establish a zero point for an instrument or to make a measurement on water considered as a pure sample.
Pure substance: matter w/properties/composition that don't vary from sample to sample. (salt, water,etc). Homogeneous mixture: composition can vary; an example is a solution (coffee w/sugar) and is uniform throughout.
Pure iron is a pure substance because it's chemical composition stays uniform regardless of it's sample size. It's matter that appears uniform in appearance and composition, no matter how small the sample size. An example of a pure substance includes pure iron
a element is a pure substance
A pure substance is a material which contains atoms of only one kind. It has fixed physical and chemical properties like boiling point, melting point, valency, density.