How can the rate of a reaction be increased? lowering the temperature

adding a catalyst

having less surface area

decreasing the amount of reactants

In the reading, yao chen-yuan describes traveling to deliver a message. why was he willing to risk danger to travelto tientsin? he wanted to the boxers with their cause

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

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .