What is the iupac name of a bromobenzene with carboxylic acid attached

Bromobenzoic acid  

Explanation:

COOH has higher priority than Br, so the parent name is benzoic acid.

The COOH group is automatically on C1 of the ring, and the other aromatic carbons are numbered sequentially around the ring.

The name of the substituent is joined to that of the parent, and the locant is attached to that with a hyphen.

The generic IUPAC name is bromobenzoic acid.

There are three isomers of benzoic acid — 2-bromobenzoic acid, 3-bromobenzoic acid, and 4-bromobenzoic acid —  so you must always specify which one you mean.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."