Are all chemicals made in the sun?

Answer 1

The universe is made of hydrogen with a small percentage helium. Elements heavier than helium are made in stars (not only the Sun). We will never see any heavy elements made by our Sun, but perhaps some civilization will. The elements we use, up to iron in atomic weight are made in stars by fusion during their normal lifetimes. Elements heavier than iron are made only when stars explode.

The earliest solar systems in the early universe consisted only of hydrogen and helium. We live in a solar system since made of material tht has recycled once or twice since we know that the rubble surrounding our Sun has iron and heavier elements.