Pls i don’t understand chemistry that much and it’s due tomorrow. picture above

4. 1.07x10²⁴ molecules CoCl2

5. 7.95 x 10²³ molecules CCl4

6. 1.32x10²³ molecules LiCl

7. 3.96 x10²⁴ molecules NH4OH

8. 1.81 x10²² molecules NH4SO2

Explanation: Solution attached.

First convert mass to moles by using the molar mass of the compound then convert to molecules using Avogadro's number.

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.

: )