Answer:
pls write question correctly so I can answer it
7.
a. This is an equation because it has to parts, separated by an equal sign
b. 5 because 5 is the number b is multiplied by in the first part
c. idk
d. a, b, and c are the variables
e. idk
sorry haven't done this in a while
Answer:
it has +4 positive charge because it gives it's 4 electron to another element this is reason