rapidly/at high speeds/racing at random / in all directions.A1b(iii)Carry out paper chromatography with a suitable solvent and locating agent.Asingle spot which matches literature value on the chromatogram shows that thedistillate is a pure substance.ORDetermine the boiling point of the ...
Is blood classified as an element, a compound, or a mixture? Explain. Describe the metallurgy of magnesium. Is water classified as a pure substance (element or compound) or a mixture? Explain. Elements and compounds are both classified as pure substances. Clearly explain why they have the sam...
Is water classified as a pure substance (element or compound) or a mixture? Explain. Explain the term heterogeneous nucleation. Explain why you are instructed to wash the collected crystals with distilled water instead of a water-methanol mixture. What type of mixtures can be separated by fil...
can share and celebrate the delight of life with their family and close friends only. In addition, other wedding expenses including floral arrangements, invitations, photography, costumes and so many more also cost people more than they should since I believe they’re more show than substance. ...
If the substance is impure, the melting point range will be much broader compared to the pure substance. Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer To determine the melting point of ...
and beautiful, and as thin as a threadpaper, pugnacious looks extraordinary, the ornamental and the combined plain properties Justice, honest and honest simple sincere great tact People praise the loyal and conscientious pure and noble dignified and imposing against the current social commitment ...
Words are used to describe only a small part of the many ideas we associate with any given message. Sometimes we can gain insight into some of those associations if we listen for more than words. We don’t always say what we mean or mean what we say. Sometimes our words don’t mean...
13) A second crop of crystals may be obtained by concentrating the vacuum filtrate and cooling. Why is this crop of crystals probably less pure than the first crop? 14) Explain why the rate of dissolution of a crystalline substance may depend on...
In all 3 cases the samples contained pure fetal blood cells. Normal levels of F.VIII:C and F.VIII:Ag were detected in Cases 1 and 2, and no F . V I I I : C and very low F N I i I : A g in Case 3. Each pregnant woman of Cases 1 and 2 decided to go term and gave...
The difference between the incoming and the reflected energy must equal the energy absorbed in the substance, this amount being obtained by multiplying the average value of the intensity in the substance by the coefficient of true absorption. By introducing a correction for the photoelectric absorp-...