A. is meaningless.
B. is perigee.
C. is apogee.
D. is perihelion.
If an atom gains electrons, it develops a negative charge equal to the number of electrons gained.
So the net charge on the copper atom which gained 2 electrons will be -2.
I have one reason the reaction take place faster because the molecules are going at a faster pace because the temperature is rising
Headphones, refrigerator magnets, and compasses
Hope that was helpful.
