Answer:
-219
Explanation:
1.5(339) - 1.5(485) = -219
... and a power ot ten.
For example: 1,3x10^21 is in scientific notation, but 13x10^20 is not in scientific notation.
C) because the sun rays are converted into electricity by exciting electrons into silicon cells etc etc..
If element A has an ionic charge of +2 and element B has an ionic charge of -3
then the reaction is given as: A^2+ + B^3- --------------------> A3B2
the compound formed is : A3B<span>2</span>