Can you determine the temperature at which two unknown substances change states?

"Mixed melting point determination" is a term used in chemistry.

Organic substances have a fixed temperature at which they liquify.

If a chemist wants to determine the nature of an unknown substance,

he can determine it by these means. If the unknown substance does

not melt at the usual temperature, it can be said to be impure. If

the chemist has two unknown substances and wants to determine what

they are, he may mix equal parts of each and start the

liquification process. If the combination melts at the usual

temperature, the chemist can say that both are the same. If the

chemist wants to determine the nature of an unknown substance, he

may mix a fixed amount of a known substance with a fixed amount of

an unknown substance, it can be estimated, what the unknown

substance is.

Boiling point is the temperature at which a substance changes from liquid → gas. Scientists determine melting or boiling point by heating a small sample of the substance, keeping careful track of the temperature the entire time. When they see a solid melt, they record the temperature as the melting point.

answer: 4

explanation: 8

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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