(5 x 10 4) + (2.5 x 10 2) =
2 x 10 2
12.5 x 10 2
0.5 x 10 6
5 x 106

2.55x10^2

Explanation:

I will assume the question is:

(5x10^4) + (2.5x10^2)

= (0.05x10^2) + (2.5x10^2)

=2.55x10^2

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.