Help! What will cause an increase in the weight of an object

What will most likely happen when two bromine atoms bond together?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

In salt water solution, the salt is the blank