Which statement best describes why industry uses heterogeneous catalysts?
They tend to be more stable.
They are all gases at room temperature.
They form strong bonds with reactant molecules.
They cause stronger bonds to form between molecules.

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Which of these conditions most likely produces an unstable isotope?

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