Answer:
The answer to your question is: D. Fractional distillation
Explanation:
A. Column chromatography this method is use to separate mixtures base in its capacity to be absorbed.
B. Fractional crystallization this method use the solubility of solutes in a solvent.
C. Simple distillation is a method to separate 2 liquids based on the difference in their boiling points.
D. Fractional distillation is a method used to separate a mixture of liquids which have their boiling points very close.
E. Paper chromatography is a method to separate a mixture based on their different rate of migration on a paper.
Answer:
half lives passed=5
given sample=90g
sample left=2.8125g
Explanation:
no. of half lives=total time/half life
no.=19days/3.8days
no.=5 days
after 5 half lives sample left=2.8125g
The hybridization of the central carbon compound CH4 tetrahedral is
SP^3 hybridization
In tetrahedral molecular geometry a central atom is located at the center with 4 substituent that are located at the corners of tetrahedron. Example in methane molecules is made up of b equally spaced sp^3 hybrid orbital forming bond angle of 109.5
Answer:
I feel that "The Mesosaurus could not swim between the continents in the open ocean, so the fossils
show that the continents must have been together in the past." Is the best answer.
Explanation:
Because this is a true statement and even scientists belive this is true.
