Students are completing a table about a particular subatomic particle that helps make up an atom. The students have filled in one cell of the table so far. A 3-column table with 2 rows. The first row has entries Mass (a m u), location, charge. The second row has entries 1, nothing, nothing.

Based on the information shown, which statement about the subatomic particle must be correct?

Its location is in the nucleus, because the particle is a proton or a neutron.
Its location is in the nucleus, because the particle is a neutron or an electron.
Its charge is +1, because the particle is a proton.
Its charge is 0, because the particle is a neutron.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.