Density = mass/volume
D = 500 g /200 cm^3
D = 2.5 g/cm^3
hope this helps!
First you have a knowledge of bond order which is
B.O=(no. of electrons in bonding orbital - no. of electrons in non-bonding orbital)÷2
Note:
bond strength is directly proportional to bond order.
For oxygen:
B.O=(6-2)/2= 2; after the removal of two electrons(removal occur from non-bonding orbital)
B.O=(6-0)/2= 3 (As B.O increased bond strength increased)
For Nitrogen:
B.O=(6-0)/2= 3; after the removal of two electrons(removal occur from bonding orbital)
B.O=(4-0)/2= 2 (As B.O decreased bond strength decreased)
Answer:
The ion is written in the attached file
Explanation:
Answer:
It will take 12 hours to settle out same particulate with half the diameter from same chimney.
Explanation:
The settling rate of particulates = S
Diameter of the particulate = d

The settling rate of one type of particulates = 
Diameter of the one type of particulate = 
The settling rate of other type of particulates = 
Diameter of the other type of particulate = 




Given that settling of one type of particulate from chimney is 2 days.So settling of other type of particulate from same chimney:

1 day = 24 hours
0.5 days = 0.5 × 24 hours = 12 hours
It will take 12 hours to settle out same particulate with half the diameter from same chimney.