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Contained in the chart to determine which unknown substance could be lithium?
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∙ 10y ago
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∙ 10y ago
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What is meant by a mixed melting-point determination?
"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.
How can you test an unknown crystalline substance to determine whether it is table salt?
by tasting it
What is the calibration curve for rotameter?
calibration curve helps you determine the value of a unknown substance
What do you think would happen if the unknown substance contained a mixture of two elements?
Look at a textbook. Don't cheat you cheater. And I'm sure it's an opinion question.
Does argon react with anything?
it reacts with hydrogen and lithium and unknown elements
How can you determine whether unknown substance is a mineral?
gchvyvhvyvuv
How can you determine whether an unknown substance is a mineral?
gchvyvhvyvuv
What is meant by a mixed melting-point determination?
"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.
How can you test an unknown crystalline substance to determine whether it is table salt?
by tasting it
What is the calibration curve for rotameter?
calibration curve helps you determine the value of a unknown substance
How do you determine the identity of an unknown substance by observing its mass and volume?
All you can do with mass and volume is to determine the density of the substance. density = mass / volume or p=m/v after you determine the density, you can look on any density table and find the substance you are looking for. good look. -julio
Why is it important to identify an unknown substance?
Because the substance could potentially be extremely toxic or harmful. You must never use an unknown substance in experiments without identifying it first, many tests can be undertaken to determine the cation and anion. These tests include the flame test, solubility tests, precipitate reaction tests and conductivity tests. These do vary depending on the unknown substance.
What is an rf value used for?
The rf value is shorthand for the retention value of a substance. It is used in chromatography to determine the components of an unknown sample.
What do you think would happen if the unknown substance contained a mixture of two elements?
Look at a textbook. Don't cheat you cheater. And I'm sure it's an opinion question.
What exactly is a reagent in English?
A reagent is a chemical substance that reacts with some other substance. It is common to add a specific reagent to an unknown substance to determine whether or not the substance that the particular reagent reacts to is present. (For example, add a reagent for sugar to test for the presence of sugar.)
Does argon react with anything?
it reacts with hydrogen and lithium and unknown elements
What is the unknown substance for A glass of milk is in the kitchen table for a week .?
what is the unknown substance of a glass of milk for a week
