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What changes did you observe in the iron sample during the reaction?
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Do characteristic properties change when sample changes?
No they do not change
What is the purpose of using lime water during the reaction of the acid sample with marble chip?
when the acid sample reacts with the marble chip, a gas will be produced. the lime water is used to identify the gas. lime water produces a precipitate when reacted with CO2 gas.
What is the method that creates a large sample of DNA for testing from a small sample of DNA?
That would probably be polymerase chain reaction or PCR for short.
How would you describe the reaction during moore's test?
Moore's test indicates the presence of a carbohydrates in a specific compound. Gray Color result indicates the carbohydrate is present in a test sample..
What happens to a fixed sample of gas when its temperature changes?
If a fixed sample of gas has a change of temperature pressure would increase.
What are the importance of indicators in volumetric analysis?
Indicators change the colours when the PH of the sample changes. So during titration when the reaction is complete a new product will form which is resulting in sudden change of PH. This can be detected by the change in the colour of the sample. The reaction may be neutralization reaction or Redox reaction. So to know the exact stoichiometric quantity of reagents to complete a reaction we must use Indicators. different indicators give different colours based on the PH.
What is the purpose of using lime water during the reaction of the acid sample with the marble chip?
Lime water absorbs the carbon dioxide gas produced during the reaction
What is the Correct procedure for handling sample of pond water?
place the sample on the microscope slide and observe it.
A study in which researchers measure or observe characteristics of the sample members?
observational study
What is an allelic dropout?
An allelic dropout is a failure to determine an allele within a sample. This occurs when one or both allelic copies were not amplified during the polymerase chain reaction.
Do characteristic properties change when sample changes?
No they do not change
Is it legal for a male to watch a female give a urine sample?
In a medical setting, a male healthcare professional may be present to observe a female giving a urine sample for clinical purposes. This is generally considered acceptable practice in order to ensure proper collection and handling of the sample. It is important for healthcare professionals to maintain patient privacy and dignity during the process.
What is the purpose of using lime water during the reaction of the acid sample with marble chip?
when the acid sample reacts with the marble chip, a gas will be produced. the lime water is used to identify the gas. lime water produces a precipitate when reacted with CO2 gas.
A 5.0-gram sample of zinc and a 50-milliliter sample of hydrochloric acid are used in a chemical reaction Which combination of these samples has the fastest reaction rate?
zinc powder and 3.0 M HCl(aq)
What staining procedure will be used to observe bacteria in the sputum sample?
acid fast staining or Ziel Neelson staining for observing Mycobacteria tuberculosis or Koch bacilli from sputum sample.
What do scientists use to observe small living organisms?
it depends on the size of the To_observe_a_small_living_organism_a_scientist_might_use_a. If it is microscopic, then scientists might have to observe it using it using a microscope. If it can actually be seen, then scientists mught actually take a sample of it back to the labratory to observe physically
What type of reaction occures when a sample of the compound selenium sulfide which broke down into selenium and sulfur is heated?
This is a "decomposition" reaction.
