75km/hr
A car traveling with constant speed travels 150km in 7200 s. What is the speed of the car
Answer:
It will have 5 valence electrons as its in group 5.
The atom will gain as its closer to the full configuration 8.
The charge will be 3- as it will gain 3 electrons.
There are 14 atoms, the 2 at the front times' everything by 2, so there 4Ks, 2Ss and 8Os, altogether 14
2 moles x 6.02 x 10^23 maybe
