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.

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.