Answer:
Oxygen- 6
Calcium-2
Nitrogen-5
Aluminum-3
Flourine-7
Explanation:
A Lewis structure or dot electron structure is a representation of an atom in which the valence electrons on the outermost shell of the atom are represented as dots.
These dots show the number of valence electrons as well as the group to which the atom belongs in the periodic table.
Answer:
Red dye
Explanation:
In the given question, the complete question has not been provided but the propanone is used as a solvent in paper chromatography. The paper chromatography was performed for the black ink in which the black ink got separated in the red, blue and yellow colour.
From these three colours that are red, blue and yellow, the dye which is most soluble in propanone was red as red colour moved the most in the given chromatogram and the dye which travelled the most is most soluble in propanone.
Thus, red dye is the correct answer.
Answer:
0.259 nm is the distance between the red and green balls.
Explanation:
Let the distance between the red and green ball be = RG =x
Let distance between blue and red ball = RB =y = 0.448 nm
Let distance between blue and green ball = GB = z
In triangle RGB
( Pythagoras theorem)
..[1]
In triangle GOB
( Pythagoras theorem)
GO = OB = sides of cube
..[2]
Using [2] in [1]:
0.259 nm is the distance between the red and green balls.
Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 So its "Cu2s"
Answer:
Easy 5 points? Don't mind if I do.
Explanation:
Become a ghost.