Answer:
I think its the first one
Explanation:
I’m pretty sure it’s isotopes
Answer:
force exerted on the ball
Explanation:
<u>Answer:</u> The chemical formula of the compound formed is 
<u>Explanation:</u>
Acids are defined as the chemical species which donate hydrogen ions when dissolved in water.

Ionic compound is formed by the complete transfer of electrons from 1 atom to another atom. The cation is formed by the loss of electrons by metals and anions are formed by gain of electrons by non metals.
We are given:
An anion having chemical formula
named as sulfate ion
This will combine with 2 hydrogen ions to form a neutral compound. The neutral compound formed is sulfuric acid.
Hence, the chemical formula of the compound formed is 