Question

The following list contains some common radicals. Using the charges on these ions and the idea of valence, predict the formulas for the following:

Answer 1

Answer:

H2S

Explanation:

When hydrogen react with sulphur, the following occurrs:

Hydrogen has a valency of +1.

Sulphur has a valency of –2.

During bonding, there will be exchange of ion as shown below:

H¹ + S²¯ —> H2S

The compound, H2S produced is called hydrogen sulfide.