Richard P. answered • 07/01/20
Tutor
4.9
(831)
PhD in Physics with 10+ years tutoring experience in STEM subjects
It is required that 7 y = 2 x and that x and y must be integers.
A solution is x = 7 and y = 2 so that both sides evaluate to 14
Since 7/2 is not an integer, x = 2 and y = 7 is the solution involving the smallest integers.
Rajai A.
The total charge of the molecule in the ionic compound must be zero . ( +2×7) + (-7×2) = 007/02/20