Perform the following operation and express the answer in
scientific notation.
3.60x10-12 + 3.60x10-11

3.60X10^-12 is equal to 0.360X10^-11 (move decimal one place left)

Now you can add 3.60X10^-11 and 0.360X10^-11:

3.60X10^-11 + 0.360X10^-11 = 3.96X10^-11

You're really just adding 3.60 to 0.36 since the "X10^-11" is the same for both.

passing a magnet thought the

mixture , because iron gets attracted to magnet .

well in order to answer this question you have to provide more information < 3