What happens when an acid is mixed with a base?
they will form a stronger base.
they will neutralize each other.
they will form a stronger acid.
they will form a gas.

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion