B. Carbon changes from one form to another, but the total amount of carbon remains the same.
Answer:
Relative rate of effusion for the orange to blue spheres = 1.531
Explanation:
Rate of effusion of Orange / Rate of effusion of blue = [Mblue / Morange]^1/2
Vrms = sqrt [(3RT/M)]
Vorange / Vblue = [ Mblue / Morange]^1/2
Rate of effusion of Orange / Rate of effusion of blue = 565/ 369 = 1.531
C is the answer I took a test with the same answer
Answer:
The correct answer is A and D.
Explanation:
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Reason:
The size of the ions follows the order:
Negatively charged ion > Neutral atom >
Positively charged ion
This is because of the size of ions increases when the electrons are added to the outermost shell of an atom.
This happens due to the increase in
electron-electron repulsion.
Moreover, when the electrons are removed from an atom, then the affective nuclear charge that is experienced by the outermost electron increases.
Thus the size of the positively charged ion is least.
