Answer: both options A and D
Explanation:
Half filled and completely filled orbitals are more stable than any other configuration since they are more symmetrical and energy exchange Occurs readily.
So 4f^7& 4f^14 are more stable
Static Friction, Sliding Friction, Rolling Friction, and finally Fluid Friction.
I believe the answer would be C, unbalanced.
Since the forces are in opposite directions, and aren't the same size, the answer would be unbalanced.
You should clean up after every investigation because if you leave a mess, maybe another detective will come in and get lost because of the mess you left.
Not very much because half the time the water is purified but just normal water in my area probably has serious levels of scarcity.
