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How do you identify whether the unknown chemical is element or compounds?
Wiki User
∙ 7y ago
Previous answers are off point. Presumably you are given a sample of something and want to know whether it is is a compound or an element. There are several ways of finding out:
- Investigate its chemistry. See how it reacts with oxygen, hydrogen, calcium, or various acids.
- Investigate its physical chemistry. Does it have a well defined melting and boiling point? If not, it isn't an element.
- X-ray studies. The absorption edges from an x-ray spectrum will identify the element(s) that may be present.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoan element can be found on the Periodic Table
a compound is 2 elements or more bonded
oxidation number
Wiki User
∙ 8y agoWe can use different methods of chemical analysis.
Wiki User
∙ 6y agoNo elements are compounds. A compound consists of 2 or more elements that are chemically combined.
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What are 5 chemical properties of fermium?
The element Fermium is too unknown to know any physical or chemical property
Suppose you were given an unknown liquid and asked to determine if it was an element a compound or a mixture What would you do How would this help you find out what it was?
If I was given an unknown liquid and asked to determine if it was an element, a compound, or a mixture I would heat the unknown liquid up to see if any compounds separated from the unknown liquid. After that I would get a microscope and look to see if it is a pure element. Then I would get a Platelet separation machine and put the liquid in the machine to see if the liquid separated. Thats how I would determine if the an unknown liquid is an element, a compound, or a mixture.
An unknown substance is made only of identical atoms that cannot be broken down this substance is what?
An Element ... A substance that cannot be broken down into simpler substances by chemical means.
What will happen when you mix unknown chemical?
Unknown
What is a way in which chemical properties are used?
Classifying chemicals by their chemical properties, like their chemical functions, or the way they react chemically, allows them to be grouped together according to their functions.
When might it be helpful to identify an unknown element?
It is helpful to identify an unknown element when you are exposed to a lot of it. This element could be very dangerous to you.
What would be the best way to identify whether or not an unknown substance is made of a certain element?
By trying to break it down into other substances by chemical or physical means. If it eventually breaks down, it is not an element.
Why can you write a formula for compounds but not for a mixture?
Because in a mixture, there are no bonds formed between the elements, and therefore the proportions of each element are unknown, for the mixture as a whole. A mixture is not a chemical change.
Which properties can you use to identify an unknown mineral?
chemical analysis
What are 5 chemical properties of fermium?
The element Fermium is too unknown to know any physical or chemical property
What is the formula for the compound of mendelevium and chloride?
Compounds of mendelevium are unknown up today; a possible chemical formula is MdCl3.
What are five ways that the periodic table can be useful in chemistry?
It can be used to identify some chemical properties of the elements. It helps to find out the relative atomic sizes of the elements. The number of valence electrons, the number of energy levels can be found.
What are two uses for barium as a pure element?
Pure barium is very hard to prepare, to the extent that many of its properties are unknown. The these circumstances it is difficult to identify the uses of the pure element.
Suppose you were given an unknown liquid and asked to determine if it was an element a compound or a mixture What would you do How would this help you find out what it was?
If I was given an unknown liquid and asked to determine if it was an element, a compound, or a mixture I would heat the unknown liquid up to see if any compounds separated from the unknown liquid. After that I would get a microscope and look to see if it is a pure element. Then I would get a Platelet separation machine and put the liquid in the machine to see if the liquid separated. Thats how I would determine if the an unknown liquid is an element, a compound, or a mixture.
What are Frequencies of light emitted by an element called?
"Spectrogram" is a word used to describe the set of specific characteristic frequencies of light which are emitted by a given chemical element when it is sufficiently excited by heat or by some other means.Alternatively, a scientific technique known as "spectroscopy" can be used to identify the elements in some matter of unknown composition and also the emission spectra of molecules can be used in chemical analysis of substances.Because each element's emission spectrum is unique, the "emission spectrum" of a chemical element or chemical compound can be used to help identify what it is. The "emission spectrum" is the name given to the relative intensity of each frequency of electromagnetic radiation http://www.answers.com/topic/emission-spectrum by the element's atoms or a compound's molecules when they are returned to a ground state.
What are the organic compounds that work with enzymes to promote chemical changes?
Well there are many different kinds including chivalucanation now why they are doing this is unknown?
What are organic compounds that work with enzymes to promote chemical changes?
Well there are many different kinds including chivalucanation now why they are doing this is unknown?
