I need help working these

1) 7.80 X 10^22 = .13

2) 5.6 = 3.4 X 10^24

3)3.81 X = 3.08 X 10^22

4) 399.91 = 269

5)4.32 X = 5.37

Explanation:

For 2 the correct answer is 3.4 instead of 3.2. The 3.4 is rounded from 3.37. Sadly I couldn't figure out the bonus.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )