Answer:
hope this image is helpful for you
Oxygen, should be correct
sometimes we use and need mandatory
A. The reactants are located to the left of the arrow in the chemical equation
Answer:
In first shell 2 electrons are present and 7 electrons are present in last shell
Explanation:
2AgBr+Cl2=2AgCl+Br2
You want everything to be the same on both sides the easiest way to do that is draw a line down the equal sign and write out all you compound and how many there are and do the same on the other side until there even